43results about How to "Ensure vehicle safety" patented technology

Application data generated by an ECU is wireless transmitted by a transmission device in a subject vehicle so as to periodically change a communications distance by changing, every transmission timing, at least one of (i) a transmission rate, which is used in transforming a transmission packet into a transmission signal in a modulation section, and (ii) a transmission power, which is configured by an amplification section to amplify the transmission signal. As a result, the data transmission from the subject vehicle can be made (i) in high repetition times with respect to a nearby vehicle having a greater risk of collision (i.e., time to collision being shorter), and (ii) in low repetition times with respect to a distant vehicle having a less risk of collision (i.e., time to collision being longer).

The invention discloses an underground parking garage pedestrian and vehicle monitoring method based on artificial intelligence. At present, an underground parking garage is lack of an effective platform system for people and vehicle detection and unified management. In addition, the method can collect attribute information of the vehicle owner and the driven vehicle through the face recognition module and the vehicle attribute recognition module and carry out one-to-one correspondence marking contact on the vehicle owner and the driven vehicle. If the vehicle is parked at a certain moment, the human face verification is inconsistent, human body posture detection is carried out to identify human body skeleton key point information, and abnormal behavior detection and identification are carried out through the human body skeleton joint point information, so that abnormal behavior actions such as tumbling and door opening to enter a vehicle can be effectively identified, and the vehicleand personal safety of a vehicle owner can be effectively guaranteed.

The invention discloses a polyurethane environment-friendly flame-retardant foaming material for a storage battery box body assembly and a preparation method thereof. The polyurethane environment-friendly flame-retardant foaming material for the storage battery box body assembly is composed of acetonitrile polyester and mixed material components in a mass ratio of 1:1.6, wherein the mixed material is composed of the following components in parts by mass: 25-35 parts of Liansheng polyester, 25-35 parts of polyether 4113, 20-35 parts of polyester 450, 2.5-3 parts of silicone oil, 180-250 parts of reinforcing glass fibers, 1.2-1.8 parts of a catalyst DMP-30, 1.3-1.7 parts of an equilibrium catalyst HP-12, 1.1-1.5 parts of a catalyst HP-54, 3.5-3.8 parts of water and 38-42 parts of a flame retardant, and the silicone oil is silicone oil AK-8807. The polyurethane environment-friendly flame-retardant foaming material disclosed by the invention has the advantages that the raw materials adopt a reasonable ratio, the obtained foaming material has good flame-retardant property and stability, and a bumper made from the foaming material not only has high fire protection security and strength but also is long in service life; and the foaming material prepared by adopting environment-friendly raw materials in the reasonable ratio can not release harmful substances, and no harm is caused to the environment and a human body.

The invention discloses a bumper lower bar environment-friendly flame-retardant polyurethane foam material and a preparation method. The bumper lower bar environment-friendly flame-retardant polyurethane foam material is composed of acetonitrile polyester and a composite material in a mass ratio of 1:1.7, and the composite material is composed of the following components by mass: 25-28 parts of polyester 403, 35-45 parts of polyester 3360, 250-350 parts of glass fiber, 12-18 parts of polyether 4110, 2.5-3 parts of silicone oil, 1.3-1.8 parts of a catalyst HP-2, 1.5-1.9 parts of a catalyst A33, 3.6-3.9 parts of water, and 36-38 parts of a flame retardant TCEP, wherein the silicone oil is silicone oil AK-158. The preparation method includes: adding the components of the composite material into a reaction kettle and carrying out mixing reaction under a stirring speed of 130-150r / min for 4-5h to obtain the composite material, then mixing acetonitrile polyester and the composite material in a mass ratio of 1:1.7 evenly, thus obtaining the bumper lower bar environment-friendly flame-retardant polyurethane foam material. With the materials and the method provided by the invention, the prepared bumper lower bar environment-friendly flame-retardant polyurethane foam material has the advantages of flame retardance and high temperature resistance, high flame-retardant properties, high strength, long service life and environmental protection.

The invention discloses an auto tailgate device. Cats or dogs and other animals are prevented from automatically opening up a tailgate of a car. The tailgate is controlled to be opened at different angles. The device is arranged below a car bumper. Therefore, the device is composed of more than one sensor capable of only sensing the ground below the bumper to the designated height and a configuration part capable of configuring opening / closing modes of above sensors. Additionally, through the configuration part, the sensor is started and a control part can open up the tailgate through sensingresults of the above sensors.

The invention discloses an anti-pressing type safe and intelligent parking lock. A base is internally provided with a mounting chamber, the surface of the top of the base is provided with a limiting groove, a first screw rod and a second screw rod are arranged in the mounting chamber in the long-axis direction in an extending mode, and the first screw rod and the second screw rod are opposite in the rotating direction, are connected through a universal shaft, and are driven by a motor; the first screw rod and the second screw rod are correspondingly provided with a first ball nut pair and a second ball nut pair, the two ball nut pairs are correspondingly connected with a first limiting rod and a second limiting rod through sliding blocks in a hinged mode, and the free ends of the two limiting rods are in hinged connection to the two ends of the long-axis direction of a cross arm correspondingly; and through fit of the motor, the screw rods and the ball nut pairs, the bottom ends of thefirst screw rod and the second screw rod are sequentially driven to do same-direction or opposite-direction movement along the first screw rod and the second screw rod through the sliding blocks, sothat the first screw rod, the cross arm and the second screw rod are gradually lifted or gradually lowered to be embedded into the limiting groove. The structure is simple, lifting and falling operation of the limiting rods is realized through the mode of electric control, and convenient and rapid effects are achieved.

The invention discloses an environment-friendly flame-retardant foaming material for a lower bumper and a preparation method for the environment-friendly flame-retardant foaming material. The environment-friendly flame-retardant foaming material for the lower bumper consists of the following components in mass ratio of acetonitrile polyester to combined materials of 1 to 16; the combined materials is prepared from the following components in parts by mass: 40-50 parts of polyester CT 400, 300-380 parts of glass fibers, 35-40 parts of polyether, 2.8-3.2 parts of silicone oil, 1.8-2.5 parts of a catalyst D31, 1.0-1.5 parts of a catalyst A33, 3.5-3.8 parts of water and 38-42 parts of a flame retardant TCPP; and the silicone oil is silicone oil AK-8806. The raw materials are reasonably proportioned, so that the prepared foaming material is good in flame resistance and stability; and the bumper manufactured by the foaming material is high in fireproof safety and strength, and is low in service life; and the foaming material prepared from the environment-friendly raw materials which are reasonably proportioned does not release harmful substances, so that harm on environment and human body are avoided.

The invention discloses an environment-friendly foaming material for an air inlet pipe assembly and a preparation method. The environment-friendly foaming material for the air inlet pipe assembly is prepared from the following components in a mass proportion: the proportion of ethyl cyanide polyester to a combined material is 1 to 1.55; the combined material is prepared from the following components in parts by mass: 33 to 40 parts of polyether 330, 35 to 45 parts of polyether 450, 15 to 25 parts of polyether 403, 150 to 200 parts of glass fibers, 1.5 to 2.5 parts of silicon oil, 8 to 12 parts of triethanolamine, 1.2 to 1.5 parts of catalysts A33, 1.5 to 1.8 parts of catalysts HP-30, 30 to 40 parts of water, and 35 to 40 parts of flame retardant agent DMMP (dimethyl methylphosphonate). According to the environment-friendly foaming material disclosed by the invention, by adopting reasonable proportioning, the prepared foaming material is good in flame retardance and stability. According to the foaming material prepared by adopting the reasonably-proportioned environment-friendly raw materials, harmful substances cannot be released, and the damage to an environment and a human body is avoided.

The invention provides a safety vehicle door monitoring system for a vehicle. The monitoring system comprises a monitoring device and a vehicle door master switch, wherein the monitoring device is arranged on a vehicle door and used for monitoring a vehicle door opening state; the vehicle door master switch is used for controlling opening, closing and locking of the vehicle door; and the monitoring device is connected with the vehicle door master switch. The vehicle door master switch comprises a signal input module, a vehicle door opening and closing motor and a control device, wherein the signal input module is used for receiving a signal, and the control device is used for controlling the vehicle door opening and closing motor. The monitoring device comprises a central processor, a signal output module, a vehicle speed sensor, an infrared temperature sensing device and a vehicle door sub switch, wherein the central processor is connected with the vehicle speed sensor, the infrared temperature sensing device and the vehicle door sub switch, respectively. Through the adoption of the infrared temperature sensing device provided by the invention, the vehicle door is firmly closed through the vehicle door sub switch when a passenger is detected at the door.

The embodiment of the invention provides an electric braking compensation control method, a controller, an electric power-assisting auxiliary system and an automobile. The electric braking compensation control method comprises the steps that a first auxiliary braking request sent by a motor control unit (MCU) and detecting information sent by an automobile body electronic stability program (ESP) are received; according to the detecting information, when the situation that an electric braking compensation zone bit carried in the first auxiliary braking request represents that the electric braking compensation function of the MCU is in an enabling state is determined, a feedback signal is sent to the MCU; the first target pressure intensity sent by the MCU is received; and when the first target pressure intensity is less than the preset pressure intensity, a hydraulic actuating mechanism is controlled to conduct auxiliary braking according to the first target pressure intensity. The electric power-assisting auxiliary system in the scheme can provide auxiliary braking for electric braking when the situation that electric braking is in an unexpected weakening state is judged accordingto the information provided by the MCU and the ESP, it is ensured that the braking torque is within the normal braking range, and meanwhile, the influence on the driving comfort of a driver is avoided.

The invention discloses an environment-friendly and flame-retardant polyurethane foaming material for a face mask and a preparation method. The environment-friendly and flame-retardant polyurethane foaming material for the face mask is prepared from the following components in parts by mass: acetonitrile polyester and a composite material in the ratio of 1 to 1.75, wherein the composite material is prepared from the following components in parts by mass: 25 to 35 parts of polyester 3350, 20 to 30 parts of polyether 4110, 200 to 280 parts of reinforced glass fiber, 2.8 to 4.2 parts of silicone oil, 8 to 10 parts of triethanolamine, 1.5 to 2.2 parts of catalyst A33, 1.5 to 2 parts of catalyst HP-53, 3.5 to 4.2 parts of water and 42 to 48 parts of flame retardant DMMP (Dimethyl Methyl Phosphonate), wherein the silicone oil is silicone oil AK-8801. The preparation method comprises the following steps: adding the components of the composite material into a reaction still for carrying out hybrid reaction, and stirring at the stirring speed of 130 to 150r / min for 4 to 5 hours to obtain the composite material; then uniformly mixing the acetonitrile polyester and the composite material according to the ratio of 1 to 1.75 to obtain the environment-friendly and flame-retardant polyurethane foaming material for the face mask. By adopting the material and the method, the prepared environment-friendly and flame-retardant polyurethane foaming material for the face mask has the advantages of flame retardance, high temperature resistance, high flame-retardant property, high strength and environment friendliness.

The invention discloses an environment-friendly anti-flaming polyurethane foaming material for an intake tube assembly and a preparation method. The environment-friendly anti-flaming polyurethane foaming material for the intake tube assembly comprises ethyl cyanide polyester and combined material at mass ratio of 1:1.7, wherein the combined material comprises the following components in parts by weight: 28-38 parts of polyether 380, 25-30 parts of polyether 450, 24-30 parts of polyether 4110, 200-250 parts of reinforced glass fiber, 2.5-3 parts of silicone oil, 8-12 parts of triethanolamine, 0.9-1.3 parts of a catalyst A33, 1.6-1.9 parts of a catalyst HP-30, 3.2-3.8 parts of water and 30-40 parts of a fire retardant DMMP; the silicone oil is silicone oil AK-8807; the combined material can be prepared in the manner of adding the components into a reaction kettle for mixing reaction and stirring at 130-150r / min for 4-5h; and then the ethyl cyanide polyester and the combined material are uniformly mixed at mass ratio of 1:1.7, so that the environment-friendly anti-flaming polyurethane foaming material for the intake tube assembly can be prepared. After the materials and the method are adopted, the prepared environment-friendly anti-flaming polyurethane foaming material for the intake tube assembly has anti-flaming effect, is capable of resisting against high temperature, and has high-strength and environment-friendly properties.

The invention discloses an environmentally-friendly antiflaming foaming material of a bumper and a preparation method. The environmentally-friendly antiflaming foaming material of the bumper is prepared from the following ingredients in parts by weight: 1 part of acetonitrile polyester and 1.8 parts of composite material, wherein the composite material is prepared from the following ingredients in parts by weight: 40-50 parts of polyether 403, 20-30 parts of polyether 635, 2.5-3 parts of silicone oil, 1.2-1.4 parts of catalyst HP300, 1-1.5 parts of catalyst HP224, 3.5-4.6 parts of water and 38-42 parts of fire retardant TCEP (Tris(2-carboxyethyl)phosphine). According to the environmentally-friendly antiflaming foaming material, a reasonable proportion is adopted for raw materials, and the prepared foaming material has good fire resistance and stability; in addition, the bumper prepared from the foaming material has high fire-proof safety and strength and long service life; the foaming material prepared from an environmentally-friendly raw material which adopts the reasonable proportion does not release harmful substances so as to prevent from harming environment and human bodies.

A method for operating a motor of a motor-driven power steering (MDPS) includes: generating, by an inverter operating unit, a two-phase operation command by projecting a Q-axis command onto a two-phase operation axis, when an error occurs in any one of three phases; converting, by the inverter operating unit, coordinates of the two-phase operation command into an actual operation axis; calculating, by the inverter operating unit, a two-phase operation voltage by performing proportional integral (PI) control on the two-phase operation command converted into the actual operation axis; and operating, by the inverter diving unit, a motor by applying the two-phase operation voltage to an inverter unit.

The invention discloses an environment-friendly flame-retardant polyurethane foaming material for a combined bumper and a preparation method of the polyurethane foaming material. The environment-friendly flame-retardant polyurethane foaming material for the combined bumper is prepared from the components of acetonitrile polyester and a mixture according to a mass ratio of 1:1.5, wherein the mixture comprises the following components in parts by mass: 50-55 parts of polyester 4110, 55-58 parts of polyether 982, 300-400 parts of glass fibers, 25-28 parts of polyether 403, 3.0-3.5 parts of silicone oil, 1.3-1.8 parts of a catalyst A33, 2.0-2.5 parts of a curing agent HP110, 3.5-4.0 parts of water and 38-42 parts of a flame retardant DMMP, wherein the silicone oil is silicone oil AK-8801. The preparation method comprises the following steps: adding the mixed components into a reactor to carry out a mixed reaction, stirring at the speed of 130-150 revolutions per minute for 4-5 hours so as to obtain the mixture; uniformly mixing the acetonitrile polyester and the mixture according to the mass ratio of 1:1.5, thereby obtaining the environment-friendly flame-retardant polyurethane foaming material for the combined bumper. With the adoption of the materials and the method, the prepared environment-friendly flame-retardant polyurethane foaming material for the combined bumper is flame-retardant, high-temperature-resistant, high in flame-retardant property, high in strength, long in service life and environmentally friendly.

The invention discloses a mask environment-friendly flame retardant foaming material and a preparation method thereof. The mask environment-friendly flame retardant foaming material is prepared from the following components including acetonitrile polyester and a composition material with the mass proportion of 1 to 1.4; the composition material is prepared from the following components in parts by mass: 30-40 parts of polyester 3628, 40-50 parts of polyether 330, 25-28 parts of polyether 403, 200-300 parts of glass fiber, 25-35 parts of polyether 135, 3-3.5 parts of silicone oil, 1.5-2.5 parts of catalyst A33, 1.2-2.2 parts of powerful catalyst HP-50, 4.8 parts of water and 30-38 parts of flame retardant DMMP, wherein the silicone oil is silicone oil AK-8803. The preparation method comprises the following steps: adding the components of the composition material in a reaction kettle to carry out mixing reaction with the stirring speed being 130-150r / min and the stirring time being 4-5h to obtain the composition material, then uniformly mixing the acetonitrile polyester and the composition material according to the mass ratio of 1 to 1.4 to prepare the mask environment-friendly flame retardant foaming material. By adopting the materials and the method, the prepared mask environment-friendly flame retardant foaming material is high in high temperature resistance performance, flame retardant performance and strength, and is environmentally friendly.

The invention discloses an environmental-friendly flame-retardant foamed bumper material and a preparation method. The environmental-friendly flame-retardant foamed bumper material consists of the following components, namely acetonitrile polyester and a compounded material in a mass ratio of 1:1.5, wherein the compounded material comprises the following components in parts by mass: 30-40 parts of polyester 330, 30-45 parts of polyester 3360, 250-350 parts of a glass fiber, 9-12 parts of polyester 400, 3.5-4 parts of silicon oil, 1.5-1.8 parts of a catalyst HPF1, 1.0-1.5 parts of a catalyst S20, 3-3.8 parts of water and 33-39 parts of a flame retardant TPCC; the silicon oil is silicon oil AK-158. Due to reasonable proportioning of the raw materials, the prepared foamed material is good in flame retardancy and stability, a bumper made of the foamed material is not only high in fireproof security and strength, but also long in service life, the foamed material prepared from environmental-friendly raw materials in reasonable proportions is free of harmful substance, and thus the environment and human bodies are not damaged.

The invention discloses an environment-friendly flame-retardant polyurethane foaming material for a wind guide cover and a preparation method. The environment-friendly flame-retardant polyurethane foaming material for the wind guide cover is prepared from the components of acetonitrile polyester and a composite material in a proportion by mass of 1:1.4; the composite material is prepared from the following ingredients in parts by mass: 35-40 parts of polyester 3628, 200-350 parts of fiberglass, 30-35 parts of polyester 3360, 25-30 parts of polyester 1300, 3-3.5 parts of silicone oil, 1-1.5 parts of a catalyst M62, 1.5-2 parts of a catalyst M9, 3.5-4 parts of water and 38-40 parts of a fire retardant DMMP (dimethyl methyl phosphonate), wherein silicone oil AK-158 serves as the silicone oil; the preparation method comprises the steps of adding the ingredients of the composite material into a reaction kettle to perform mixed reaction, stirring at the speed of 130-150r / min, and stirring for 4-5h to obtain the composite material; then mixing the acetonitrile polyester with the composite material uniformly in the proportion by mass of 1:1.4 to prepare the environment-friendly flame-retardant polyurethane foaming material for the wind guide cover. After the materials and the method are adopted, the prepared environment-friendly flame-retardant polyurethane foaming material for the wind guide cover is flame-retardant, high temperature-resistant, high in both flame retardant property and strength, and environmentally friendly.

The invention discloses a hard-foam polyurethane foam material for a fuel tank of a light truck and a preparation method thereof. The hard-foam polyurethane foam material for the fuel tank of the light truck comprises the following raw materials: isocyanate and a combined material, wherein in parts by mass, the mass ratio of the isocyanate to the combined material is 1:1.9; the combined material comprises the following components in parts by mass: 33-43 parts of polyether HT-4110K, 20-30 parts of polyether HS-3700, 30-35 parts of polyether 3320, 3.5-3.8 parts of silicone oil, 1.5-2.5 parts ofAFM180, 3.2-4.2 parts of water, 100-130 parts of glass fiber and 35-45 parts of a flame retardant. The hard-foam polyurethane foam material for the fuel tank of the light truck is high temperature-resistant, high in flame retardance, high in strength, light in weight and environmentally friendly.

The invention discloses a bumper environment-friendly polyurethane foaming material and a preparation method thereof. The bumper environment-friendly polyurethane foaming material is prepared from the following ingredients including acetonitrile polyester and composition materials according to a mass ratio of 1:1.5, wherein the composition materials are prepared from the following materials in parts by mass: 68 to 75 parts of polyether 4110, 30 to 35 parts of polyether 982, 250 to 300 parts of glass fiber, 12 to 18 parts of polyether 1500, 2.9 to 3.5 parts of silicon oil, 0.8 to 1.3 parts of catalysts A33, 0.6 to 1 parts of catalysts A1, 3.0 to 3.8 parts of water and 35 to 40 parts of fire retardants TCPP, wherein the silicon oil is silicon oil AK-8805. The composition material ingredients are added into a reaction kettle for mixed reaction; the stirring speed is 130 to 150 r / min; the stirring time is 4 to 5h; the composition material can be obtained; then, the acetonitrile polyester and the composition materials are uniformly mixed according to the mass ratio of 1:1.5; the bumper environment-friendly polyurethane foaming material can be obtained. By using the material and the method, the prepared bumper environment-friendly polyurethane foaming material has advantages of flame resistance, high-temperature resistance, good flame-resistant performance, high intensity, long service life and environment-friendly effect.

The invention discloses an environmental-friendly flame-retardant polyurethane foaming material for an upright post and a preparation method of the environmental-friendly flame-retardant polyurethane foaming material. The environmental-friendly flame-retardant polyurethane foaming material for the upright post is composed of the following components by mass: a ratio of acetonitrile polyester to a mixture is 1:1.5; the mixture comprises the following components in parts by mass: 55-75 parts of polyether 330, 35-45 parts of polyester 3628, 25-28 parts of polyester 403, 280-350 parts of glass fiber cloth, 400 parts of silicone oil, 1.5-2 parts of a trimer catalyzer AFM 41, 1.5-2 parts of a catalyst HP-4, 3-3.6 parts of water and 35-45 parts of a flame retardant TCEP, wherein the silicone oil is silicone oil AK-8807. The preparation method comprises the following steps: adding the previously combined components into a reactor to carry out a mixed reaction, stirring to obtain a mixture at the stirring speed of 130-150 revolutions per minute for 4-5 hours; uniformly mixing acetonitrile polyester and the mixture according to a mass ratio of 1:1.5, so as to obtain the environmental-friendly flame-retardant polyurethane foaming material for the upright post. With the adoption of the material and method, the prepared environmental-friendly flame-retardant polyurethane foaming material for the upright post is flame-retardant, high-temperature-resistant, excellent in flame-retardant property, high in strength, high in rigidity and environmental-friendly.

The invention relates to the field of vehicle-mounted office technology, and discloses a police vehicle-mounted office system and method. The system comprises: a central control host machine, whereinthe central control host is respectively connected with a GPS navigation instrument and a Beidou navigation instrument through a position interface; the signal input interface is respectively connected with the control end of the central control touch screen and the remote control end of the remote control device; a collecting sensor group which is used for observing the state of the vehicle, is used for detecting the traveling speed and direction of the vehicle, the operating condition of the generator and the tire pressure; the information input end receives the collected information throughthe information acquisition sensor group; the cable is connected with the flash lamp, the lighting lamp, the whistle, the lifter and the ejector through an actuating mechanism; the communication network is connected with a background office server at the remote end through a wireless internet, and the office information is transferred;the police vehicle-mounted office system and methodcan controlthe position and the running state of the vehicle in real time through the data transmitted by the central control host for the management and deployment and security. The work of the on-site officeand other auxiliary law enforcement and the like can be completed, and the police force can be saved.

The invention discloses an eco-friendly flame-retardant polyurethane foaming material for a cab deflector cover and a preparation method thereof. The eco-friendly flame-retardant polyurethane foaming material comprises an acetonitrile polyester and a composition according to a mass ratio of 1: 1.7. The composition comprises, by mass, 30 to 32 parts of a polyester 3628, 40 to 45 parts of a polyether 330, 200 to 300 parts of reinforced glass fibers, 20 to 30 parts of a polyester 2056, 25 to 35 parts of a polyester 6300, 1.5 to 2 parts of silicone oil, 8 to 10 parts of diethanolamine, 1.5 to 1.7 parts of a catalyst HP-42, 1 to 1.3 parts of a catalyst HP-50, 2.5 to 3.9 parts of water and 33 to 37 parts of a flame retardant DMMP. The silicone oil is silicone oil AK-8005. The preparation method comprises adding the above components into a reactor, carrying out mixing at a stirring rate of 130 to 150 r / min for 4-5h for a reaction to obtain the composition, and uniformly mixing the acetonitrile polyester and the composition according to a mass ratio of 1: 1.7 to obtain the foaming material. The eco-friendly flame-retardant polyurethane foaming material for a cab deflector cover has flame retardancy, high temperature resistance, high strength and environmental friendliness.

The invention discloses an environment-friendly flame-retardant polyurethane foam material for a bumper and a preparation method. The environment-friendly flame-retardant polyurethane foam material for the bumper is prepared from the following ingredients in proportion by mass: acetonitrile polyester and a composite material, wherein the proportion of the acetonitrile polyester to the composite material is 1 to 1.6. The composite material is prepared from the following ingredients in parts by mass: 30-35 parts of polyether 835, 65-70 parts of polyester 3360, 200-250 parts of strengthened glass fiber, 3-3.5 parts of silicone oil, 1.2-1.8 parts of a catalyst A33, 1.2-2 parts of a catalyst DY828, 3.5-3.8 parts of water and 35-38 parts of a flame retardant DMMP (dimethyl methyl phosphonate), wherein silicone oil AK-8803 is used as the silicone oil. The preparation method comprises the following steps of adding the ingredients of the composite material in a reaction kettle to carry out mixed reaction, keeping the stirring speed at 130-150r / min, stirring for 4-5h to obtain the composite material, then mixing the acetonitrile polyester and the composite material evenly in the proportion by weight of 1 to 1.6 to prepare the environment-friendly flame-retardant polyurethane foam material for the bumper. After the materials and method are adopted, the prepared environment-friendly flame-retardant polyurethane foam material for the bumper is flame-retardant, high-temperature-resistant, high in flame retardance and strength, long in service life, and environment-friendly.

The invention discloses an environment-friendly and flame-retardant polyurethane foaming material for cab deflector shields, and a preparation method of the environment-friendly and flame-retardant polyurethane foaming material. The environment-friendly and flame-retardant polyurethane foaming material for the cab deflector shields is prepared from the following components: ethyl cyanide polyester and a composite material, wherein the mass ratio of the ethyl cyanide polyester to the composite material is equal to 1 to 1.65; the composite material is prepared from the following components in parts by mass: 20-35 parts of polyester 10100, 15-18 parts of polyester 403, 45-55 parts of reinforced glass fibers, 3.5-4 parts of silicone oil, 8-12 parts of triethanolamine, 1.2-1.7 parts of a catalyst HP-54, 1.6-1.9 parts of a catalyst HP-80, 3.0-3.8 parts of water and 35-40 parts of a flame retardant TCEP, wherein the silicone oil is silicone oil AK-8860. The preparation method comprises the following steps of adding the components of the composite material into a reaction kettle for carrying out mixing reaction, and stirring for 4-5h at the speed of 130-150r / min to obtain the composite material; then, evenly mixing the ethyl cyanide polyester with the composite material according to the mass ratio of 1 to 1.65 so as to obtain the environment-friendly and flame-retardant polyurethane foaming material for the cab deflector shields. After the materials and the method are adopted, the prepared environment-friendly and flame-retardant polyurethane foaming material for the cab deflector shields is flame-retardant, high-temperature-resistant, high in strength and environmentally friendly.

The invention discloses a high-position bumper environment-friendly flame-retardant polyurethane foaming material and a preparation method thereof. The high-position bumper environment-friendly flame-retardant polyurethane foaming material comprises the following components in percentage by mass: acetonitrile polyester and a combined material with the mass ratio being 1:1.65, wherein the combined material consist of the following components in parts by mass: 35 to 45 parts of polyester 330, 25 to 35 parts of polyester 3350, 9 to 12 parts of polyester 400, 2.5 to 3.5 parts of silicone oil, 1.2 to 1.8 parts of a catalyst HPF1, 1.0 to 1.5 parts of a catalyst S20, 3.0 to 3.8 parts of water and 33 to 39 parts of a flame retardant TCPP; the silicone oil is silicone oil AK-158; the components of the combined material are added into a reaction kettle to perform mixing reaction at the stirring speed being 130 to 150 r / min for 4 to 5 hours to obtain the combined material, the acetonitrile polyester and the combined material are mixed uniformly according to the mass ratio of 1:1.65 to prepare the high-position bumper environment-friendly flame-retardant polyurethane foaming material. By adoption of the materials and the method, the prepared high-position bumper environment-friendly flame-retardant polyurethane foaming material is flame-retardant and high-temperature resistant, has high flame retardance, high strength and long service life, and is environmentally friendly.

The invention discloses an environment-friendly flame-retardant foaming material for a pickup fuel tank and a preparation method of the environment-friendly flame-retardant foaming material. The environment-friendly flame-retardant foaming material for the pickup fuel tank comprises the following raw materials: isocyanate and a composite material, where the mass ratio of isocyanate to the composite material is 1:1.4, and the composite material comprises the following components by mass: 55 to 65 parts of JTM polyether 4110, 22 to 28 parts of polyether 4110, 2.5 to 2.8 parts of a stabilizer, 9to 13 parts of diethanolamine, 3 to 4 parts of a catalyst, 3 to 3.8 parts of water, 80 parts of glass fiber, and 30 to 35 parts of a flame retardant. The environment-friendly flame-retardant foaming material for the pickup fuel tank in the invention is proper in components and component proportions, so that the environment-friendly flame-retardant foaming material has the characteristics of high-temperature resistance, high flame-retardant performance, high strength, and environmental friendliness.

The invention belongs to the technical field of automobile braking systems, and discloses an EMB redundancy control system and method. The control system comprises: four EMB modules connected to different wheels respectively so as to control the wheels connected with the EMB modules; a main MCU module which is connected with each EMB module through a first CAN line; and an auxiliary MCU module which is connected with each EMB module through a second CAN line, wherein a third CAN line is connected between the main MCU module and the auxiliary MCU module, the auxiliary MCU module monitors the state of the main MCU module, and when the main MCU module does not fail, the main MCU module controls the four EMB modules, and when the main MCU module fails, the auxiliary MCU module replaces the main MCU module to control the four EMB modules. For an EMB redundancy control system, a redundancy control framework is formed between the main MCU module and the auxiliary MCU module, and vehicle safety control is achieved.