52results about How to "Improve vehicle safety" patented technology

This disclosure relates to systems and methods for vehicle policy management and enforcement. In certain embodiments, a method for enforcing a policy may include receiving policy information at a device including one or more conditions relating to a policy-managed location in a vehicle. A determination may be made whether the device is within the policy-managed location based on signals received by a short-range communication system included in the device and / or the vehicle. The received policy information may be evaluated to determine and implement one or more device actions associated with the one or more conditions.

A system for renting vehicles is disclosed. The system can comprise a vehicle access communicator (“VAC”) capable of interfacing with one or more functions of a rental vehicle and a user provided portable electronic device. The VAC can control various functions of the vehicle including, but not limited to, the door locks and / or enabling / disabling the vehicle. The VAC can also monitor various functions of the vehicle including, but not limited to, the fuel level and / or the odometer readings. The VAC can connect to the portable electronic device using a suitable connection method to access additional functionality such as, for example and not limitation, locations services, cellular, and / or internet access. The VAC and the portable electronic device can be used to provide a rental system with reduced infrastructure and operating costs. The system can enable the use of “Green Zones” to provide permanent or temporary vehicle rental areas.

The invention provides an intelligent high-voltage management system of an electric car. According to the intelligent high-voltage management system of the electric car, a signal collecting system collects the car operation state, failure detection object state and car posture state in real time; an intelligent high-voltage control unit receives an instruction of a vehicle control unit (VCU) and / or a battery management system (BMS), enables a high-voltage electricity distribution system to normally distribute electricity to vehicle high-voltage equipment and feeds back the execution result to the VCU and / or the BMS; meanwhile, fault diagnosis and detection are carried out on the high-voltage electricity distribution system according to collected data and received vehicle real-time interaction data; the fault type is determined according to a preset fault database, the high-voltage electricity distribution system is made to execute the high-voltage electricity on-off control logic under the preset fault types, and the diagnosis result is stored and sent; the high-voltage electricity distribution system caries out high-voltage electricity distribution, high-voltage electricity on / off control, circuit overcurrent protection and high-voltage pre-charging on all high-voltage devices of the car according to the instruction of the intelligent high-voltage control unit. The intelligent high-voltage management system of the electric car realizes intelligent management of high-voltage electricity of the whole car, and better improves the high-voltage safety of the electric car.

An improved battery charging system for use on a non-motorized, ground-supported wheeled vehicle such as a horse-drawn buggy, including a generator incorporated into the hub assembly of at least one wheel, a voltage control unit for controlling the voltage output of the generator over the full range or vehicle speeds, and a battery. The synchronous generator features rare earth metal permanent magnets arranged in a three-phase, outside rotor disposed within a wheel brake housing of a buggy wheel hub. The stator is situated on an axle. Voltage regulation includes active switching whereby generator output voltage is rectified during low vehicle speed operation and an increasing portion directed away from the battery as vehicle speed and thus generator output voltage increases to a level which could damage the connected battery.

A method and an apparatus for disabling certain features of a vehicle driver's wireless device include a control module strategically mounted within a vehicle passenger compartment, i.e., beneath the steering wheel. The module includes a Bluetooth device that activates a wireless-transmission device upon the slightest movement of the vehicle. The driver's wireless phone is loaded with an application that disables the ability of the user to receive emails, SMS messages or other data upon receipt of a discrete wireless signal from the transmission device. Accordingly, when the ignition is activated and the vehicle moves, the text-transmission feature is disabled. A remote server may be utilized to monitor the wireless device and notify a parent or manager if the user attempts to disable the software application.

A peripheral viewing system for a vehicle includes a pair of digital cameras, each positioned on the exterior of the vehicle proximately positioned where a side view mirror would typically be mounted. An additional digital camera is mounted on the vehicle roof immediately adjacent the top edge of the rear window. A plurality of LCD's each discretely associated with a corresponding camera are mounted within the vehicle passenger compartment at a location that is readily observable by the vehicle driver. The driver can panoramically view trailing traffic by observing the LCD's in the passenger compartment. One or more infrared phototransistor receivers are positioned at the rear of the vehicle for detecting oncoming vehicles. If the driver attempts to change lanes and activates a turn signal, a warning message will be emitted within the passenger compartment if any of the transistors detect an approaching vehicle within a predetermined range of the vehicle.

The present invention belongs to the automotive safety technical field and relates to a vehicle-mounted intelligent alarm method and device. The present invention discloses a vehicle-mounted intelligent alarm method. The method includes the following steps that: whether a current vehicle and / or an external vehicle is in a predetermined abnormal scene is judged based on acquired vehicle travel information and / or external environment information; when the current vehicle and / or the external vehicle is in the predetermined abnormal scene, a trigger instruction is responded, an target alarm information is acquired; and a data packet containing the target alarm information is transmitted to a target server through a network. According to the vehicle-mounted intelligent alarm method and device provided by the invention, the current vehicle condition information of the current vehicle and / or the external vehicle is monitored in real time, and the trigger instruction of a user is responded, and the target alarm information is sent to the target server, and therefore, relevant departments can be promptly informed to carry out rescue tasks, and casualties caused by an accident can be decreased. The vehicle-mounted intelligent alarm method and device have a great application value for the improvement of the safety of vehicles.

The invention provides a control method and a control system of an engine, and a vehicle. The method comprises the steps of: detecting a knocking signal in a predetermined crank angle range; judging if the super knocking is generated according to the knocking signal; if the super knocking is generated, adjusting the oil spraying pulse width to reduce the burning temperature; judging if the super knocking is generated again within a preset time after the adjustment of the oil spraying pulse width; and if the super knocking is generated again, preventing the generation of the super knocking through reducing the burning temperature, reducing the maximal load and / or interrupting the oil supply according to thefrequency of the super knocking. The control method of the engine can effectively reduce or even eliminate the super knocking phenomenon of the engine, so that the engine is effectively protected, the service life of the engine is prolonged, and the vehicle safety is improved.

A vehicle safety warning signal system for use on a bicycle, motorcycle, or like vehicle comprises: an elongate air pump (101) having a longitudinal length, the pump being provided to function as a visual warning device, such as, for example, by way of inclusion of an electrically powered light (105); and an attachment assembly configured to releasably attach the pump to the vehicle for operation in providing a visual warning signal, wherein: the attachment assembly is configured to hold the pump in at least a first position such that the longitudinal length of the pump is transverse to the main plane of the frame of the vehicle.

The invention provides a fuel cell hydrogen energy automobile collision control system and method. The fuel cell hydrogen energy automobile collision control system comprises a safety airbag collisionsensor, a safety airbag controller, a fuel cell controller (FCU), a hydrogen cylinder, a hydrogen cylinder valve and the like. When a vehicle is collided and the safety air bag pops up, the safety air bag collision sensor sends a collision signal to the safety air bag controller, then the safety air bag controller controls the safety air bag to pop up, and meanwhile, the collision signal is sentto the fuel cell controller (FCU) through the CAN bus, and the fuel cell controller controls the hydrogen cylinder valve port to be closed. The fuel cell hydrogen energy automobile collision control system has the beneficial effects that operation is easy, the hydrogen cutting-off speed is increased, the explosion risk during vehicle collision is reduced, the vehicle and personal safety is improved, and practicability and applicability are achieved.

The invention discloses an air suspension control method and device, a vehicle and a storage medium. The method comprises the steps that after a trunk opening instruction is received, first state information of a vehicle is obtained; if the first state information of the vehicle meets an air suspension descending condition, an environmental obstacle state of the vehicle is detected; and when the vehicle environment obstacle state is an obstacle-free state, the air suspension is controlled to descend to a height corresponding to the descending demand of the air suspension. The problems that when a user places heavy objects into a vehicle trunk, the too high suspension height enables the user to consume large physical strength, and potential safety hazards exist in the placing process are solved, and the effects that when the user needs to carry the objects in the vehicle trunk, the vehicle air suspension can automatically descend, carrying by the user is facilitated, and the vehicle using safety is improved are achieved.

The invention provides a method for predicting trip road conditions of a vehicle machine. The method comprises the steps of: the step S1: acquiring the schedule information of a user; the step S2: extracting travel position information and travel time information from the travel arrangement information; the step S3: calculating a navigation route based on the travel position information, the travel time information and historical road conditions at different departure times; and the step S4: recommending a time-consuming optimal navigation route and corresponding departure time for the user. The invention also provides a vehicle machine for predicting trip road conditions, a vehicle machine device and a computer readable storage medium.

The invention relates to an electric vehicle speed reducer which comprises an input shaft, an output shaft and a differential speed device, wherein an input shaft gear is rigidly connected to the input shaft, an output shaft first gear and an output shaft second gear are rigidly connected to the output shaft, a differential speed device gear is rigidly connected to the differential speed device, the input shaft gear is meshed with the output shaft first gear, and the output shaft second gear is meshed with the differential speed device gear. The electric vehicle speed reducer with the structure can satisfy all work conditions from low-speed large torque moment to high-speed running of an electric vehicle; has the advantages of simple structure, small part amount, and low production cost by adopting compact design and is convenient for manufacture and maintenance; meanwhile, because of lowering the size and the weight of a power assembly, the invention is beneficial to the enhancing of the transfer efficiency of the power assembly, the lowering of the noise of the power assembly, the increasing of a driving range of the electric vehicle and the applying of the electric vehicle to the small-sized vehicle field.

The invention discloses an emergency braking test device for an automobile unmanned experiment, and relates to the technical field of emergency braking. The emergency braking test device comprises a top block and an air bag. A base is mounted at the right side of the top block. A rubber block is placed below the base. A guide groove is mounted inside the rubber block. An anti-corrosion layer is mounted outside the base. A flitch is mounted above the base. A connecting rod is mounted above the mounting block. The mounting block is located in front of the base. A rotating block is mounted abovethe connecting rod. According to the emergency braking test device for the automobile unmanned experiment, the control block detects that the user is braking heavily and transmits commands to a gas generator through the arrangement of the airbag, an intake pipe, and the gas generator. The gas generator inflates the inside of the airbag through the intake pipe, which can quickly pop the airbag instantaneously. The structure of the airbag is similar to the structure of the airbag inside the vehicle. The air bag pops up and rapidly drives the base to move downwards, so that the overall operationtime of the device is shortened, and the driving safety of the user can be effectively protected.

The invention discloses an electric vehicle ramp parking reminding method. When an electric vehicle stops on a ramp and enters a ramp parking mode, a VCU reads a torque value output by an MCU and records the torque value as ANm; the VCU continuously judges whether or not the temperature of the MCU, the temperature of a motor and the like exceed a preset protection threshold value; when the detected values exceed the threshold value, vehicle vibration is caused by regular torque fluctuation, and therefore the purpose of reminding a driver to pay attention is achieved; when the detected values exceed the threshold value, the VCU controls the MCU to enter a torque control mode and sends an A+BNm torque request to the MCU, and the duration is Cms; after the delay time is reached, a torque request is sent to restore the torque to the parking torque ANm, and the duration is Cms; the above operation is repeated D times to achieve the purpose of giving a prompt to the driver; after torque fluctuation reminding is completed, the electric vehicle exits from the ramp parking mode. After acquiring a ramp parking reminding message, the driver can take a parking brake measure on the vehicle at the first time, and the safety of the vehicle is improved.

The invention provides an abnormality detection method and system for a vehicle millimeter-wave radar, and the abnormality detection method comprises the following steps: simulating a radar detectiontarget, and setting a target value of the radar detection target; transmitting a detection signal and an interference signal to perform electromagnetic wave interference on the detection signal; performing, by the radar detection target, echo reflection on the detection signal; receiving an echo reflection signal, and outputting an actual measurement value of the radar detection target; judging whether the measurement value of the radar detection target is consistent with the target value or not; if so, determining that the vehicle millimeter-wave radar is not abnormal; and if not, judging that the vehicle millimeter-wave radar is abnormal. According to the abnormality detection method for the vehicle millimeter-wave radar, the target detected by an actual radar can be simulated, whether the vehicle millimeter-wave radar can work normally or not is verified in an electromagnetic wave interference environment, and it is guaranteed that abnormality detection of the vehicle millimeter-wave radar is more comprehensive.

The invention belongs to the technical field of automobile safety, and discloses an automatic alarm system for preventing a child from being mistakenly locked in an automobile, a detection module is connected with a central control module through a circuit, and is used for carrying out signal acquisition and detection by utilizing a detection device and transmitting an acquired signal to a central processing module; the central processing module is connected with the detection module and an execution module through a circuit, and is used for receiving the collected signals by using a central processing unit or a single chip microcomputer, carrying out processing analysis based on the collected signals, and sending a control instruction to the execution module based on an analysis result; and the execution module is connected with the central control module through a circuit and is used for executing corresponding processing based on the received control instruction. The automatic alarm system for preventing the child from being mistakenly locked in the automobile has the advantages of ensuring the life safety of the child, improving the vehicle use safety, being low in price, high in reliability and convenient to install.

The invention provides an electric vehicle and a performance monitoring method and system for an electric vehicle driving system, which can execute the following steps: in each parking or deceleration process of the electric vehicle, detecting the no-load back electromotive force u of a permanent magnet motor of the electric vehicle on line; or automatically starting the test task at regular intervals or every preset time length Tt, waiting for parking or deceleration of the electric vehicle in real time after the test task is automatically started, and detecting the no-load back electromotive force u of the permanent magnet motor of the electric vehicle on line in the parking or deceleration process of the waiting electric vehicle after the waiting electric vehicle is parked or decelerated; and when the no-load back electromotive force u of the permanent magnet motor of the electric vehicle is detected every time, monitoring the performance of the driving system of the electric vehicle according to the correspondingly detected no-load back electromotive force u. The method and the system are used for improving the vehicle using safety of the user.

The invention discloses a vehicle anti-lock control method and system based on driver intention recognition, and the method comprises the steps: obtaining the hydraulic information of a vehicle braking system in real time, and calculating the hydraulic pressurization rate of the vehicle braking system within a preset time period according to the hydraulic information; if the hydraulic pressurization rate exceeds a first preset threshold value, judging that a driver needs emergency braking, and then performing additional pressurization on a wheel brake cylinder; and when it is detected that the vehicle slip rate exceeds the preset slip rate threshold value, triggering the vehicle anti-lock function. By implementing the method, the problem that the anti-lock function cannot be triggered in emergency due to insufficient strength of a driver can be solved, and the vehicle use safety is improved.

The invention discloses a vehicle fortification method and system and a storage medium. The vehicle fortification method is applied to the vehicle fortification system. The system comprises a user terminal and a vehicle control terminal, the user terminal is in communication connection with the vehicle control terminal through Bluetooth. The method comprises the steps that after the vehicle control terminal detects that a vehicle is shut down, the vehicle control terminal detects the Bluetooth connection state with the current user terminal; when the vehicle control terminal detects that the Bluetooth connection state of the vehicle control terminal and the current user terminal is abnormal, the flameout duration of the vehicle is obtained; and when the flameout duration reaches a preset threshold value, the vehicle control terminal controls the vehicle to enter a fortification mode. According to the invention, the vehicle can be protected even if the Bluetooth connection between the current user terminal and the vehicle control terminal is interrupted or the connection signal is poor, so that the safety of the vehicle is improved.

The application relates to the technical field of special-shaped mica tube processing, in particular to a super-long and high-pressure-resistant special-shaped mica piece and a preparation method thereof. An ultra-long and ultra-high-pressure-resistant special-shaped mica piece includes a first mica tube, a second mica tube and a mica connection structure. The mica connection structure includes a mica outer tube shell, a mica inner tube shell and a connecting ring. The surface is integrally formed on the inner surface of the mica outer shell, and the inner surface of the connecting ring is integrally formed on the outer surface of the mica inner shell; the vertical bisector of the connecting ring is in common with the vertical bisector of the mica outer shell and the mica inner shell The wire mica connection structure is integrally formed with a first connection cavity and a second connection cavity; the first connection cavity and the second connection cavity are respectively located on both sides of the connection ring. The application has good connection stability, can effectively improve the overall service life, and improve the vehicle safety performance of new energy vehicles.

The invention discloses a gas braking subsidiary cooling system. The gas braking subsidiary cooling system is provided with a gas nozzle and an atomizing water nozzle, and the gas nozzle and the atomizing water nozzle are correspondingly connected with a gas nozzle relay valve and an atomizing water nozzle relay valve through pipelines; and a gas nozzle relay valve control opening and an atomizingwater nozzle relay valve control opening are connected with air braking pipelines through the pipelines. By adopting the above technical scheme, in the process of vehicle braking and under emergencycircumstances, compressed air and atomized water are sprayed to a brake to make the brake be subjected to rapid heat dissipation and cooling, the brake is prevented from overheating and spontaneous combustion, fire risks are avoided, and thus the vehicle safety and the road traffic safety are improved; a teat can be carried out after common braking elements in the market are connected, the quantity of elements composing the system is small, the structure is simple, and the cost can be saved greatly; and the performance is reliable, the gas braking subsidiary cooling system can share an air pressure source with a braking system, and the installation and use are convenient.

The invention discloses an automobile metal bracket strengthening nut plate structure. The material understanding, the chemical components and the mechanical performance of an automobile metal bracket meet the requirements that a, C is smaller than or equal to 0.10, b, Mn is smaller than or equal to 0.50, c, P is smaller than or equal to 0.025, d, S is smaller than or equal to 0.02 and e, AL is larger than or equal to 0.015 when analyzing is conducted through an optical spectrum analyzer; and a, the yield strength is 180-290 Mpa, b, the tensile strength is 270-400 Mpa, c and the elongation rate is larger than or equal to 34% when testing is conducted through a universal tester. The automobile metal bracket strengthening nut plate structure is characterized in that a main body of an automobile metal bracket strengthening nut plate is a hollow cylinder with a thread; the hollow cylinder with the thread is an internal thread formed by being extruded; and overall metal plate sheets are arranged on the two sides of the main body of the nut plate correspondingly and can be bent into any shapes matched with the shape of the automobile metal bracket.

The invention discloses a motor controller with a short circuit protection function, and a motor control system with the same. The motor controller includes a rotary transformer decoding chip, and a rotary transformer excitation buffer circuit integrated with a short circuit protection circuit, wherein the short circuit protection circuit includes a short circuit protection control unit and a short circuit protection unit; the short circuit protection control unit is used for detecting the short circuit fault occurred in the rotary transformer excitation buffer circuit, and starting the short circuit protection unit when the short circuit fault is detected; the short circuit protection unit limits the maximum working current value of the rotary transformer excitation buffer circuit as a set safety current value; and the short circuit protection control unit is also used for closing the short circuit protection unit when the short circuit fault in the rotary transformer excitation buffer circuit is eliminated, so as to enable the working current of the rotary transformer excitation buffer circuit to reduce from the set safety current value and recover to a normal working current value.

The invention relates to the technical field of special vehicles and particularly provides a tank pressure distribution test method and a tank internal pressure test device for a tank truck. The testmethod comprises the following steps: (1) setting a sampling area in a tank body, fixing pressure sensing devices for acquiring pressure data in the sampling area, and setting a data acquisition device in signal connection with the pressure sensing devices to acquire the pressure data; and (2) injecting liquid into the tank body to enable each pressure sensing device to be immersed into the liquid, starting the tank truck to drive the tank body to move, and obtaining and processing test data. The pressure distribution at an end socket is obtained in a real test environment, the accuracy of test data can be improved, technicians are helped to master the pressure intensity distribution in the tank body when the vehicle runs, effective data support is provided for the structural design of thetank body in the future, and great help is provided for improving the safety of the whole vehicle.

The invention provides a protection tool wearing standardization method and system, a terminal, a medium and a vehicle applying the protection tool wearing standardization method and system. The method comprises the steps that a passenger responds to an unlocking request instruction, unlocks a power driving part and a protection tool loading part of the vehicle, and limits the speed according to a first limiting vehicle speed; if it is detected that the protection tool in the protection tool loading part is taken out within a preset time period after the protection tool loading part is unlocked, the speed limit of the vehicle is increased to a second limiting vehicle speed; otherwise, the driving part is locked so as to stop providing power. According to the invention, the speed of an electric vehicle is limited after the electric vehicle is unlocked, the speed limit is released after it is detected that a helmet and other protection tools are taken out, the user can drive the electric vehicle, and by means of the technical scheme, the user wears the protection tools in an effective and standardized manner, the habit of the user wearing the protection tools is developed, the vehicle using safety is improved, and the vehicle using management effect of the shared electric vehicle is further improved.