48results about How to "Increase braking distance" patented technology

The invention concerns a vehicle front interior structure comprising an air flow distribution duct arranged essentially parallel with a windshield. The invention is characterized in that the distribution duct is divided into at least two sections connected by a flexible joint that extends in a direction essentially across the distribution duct.

A braking force reduction control that reduces the braking force applied to the vehicle wheels is performed when braking of the vehicle is detected. More specifically, the braking force reduction control is started when a speed change of the deceleration of the vehicle has a reducing tendency, namely, when the speed change is equal to or less than a predetermined threshold value.

An electro-hydraulic brake system may include a brake input device manipulated by a driver to brake a vehicle, a brake input detecting sensor configured to detect a brake input value of the driver through the brake input device, a pressure generating device configured to generate a brake hydraulic pressure, a wheel cylinder configured to receive the brake hydraulic pressure generated from the pressure generating device and to generate braking power for braking rotations of each vehicle wheel, a hydraulic pressure supply line connected between the pressure generating device and the wheel cylinder to transfer the brake hydraulic pressure generated from the pressure generating device to each wheel cylinder, and a controller configured to output a control signal for controlling an operation of the pressure generating device to allow the pressure generating device to generate a target brake hydraulic pressure based on a signal of the brake input detecting sensor.

A method for controlling braking of a regenerative braking co-operative control system for a vehicle may include detecting, by a controller, whether a brake pedal is manipulated, determining, by the controller, a driver demand braking force, a wheel deceleration, and wheel slip when the brake pedal is manipulated, comparing, by the controller, the determined wheel deceleration value and the wheel slip value with a predetermined threshold deceleration value and a predetermined first threshold slip value, respectively, and determining, by the controller, a maximum road frictional force when the wheel deceleration value is larger than the threshold deceleration value and the wheel slip value is larger than the first threshold slip value and determining a regenerative braking force of driving wheels in accordance with the determined maximum road frictional force.

The invention relates to the field of hub machining, and discloses an automobile hub machining process. The process comprises the following steps: (1) spoke forming; (2) rim forming, specifically, a rim is manufactured by conducting flanging forming and spinning forming on a cylinder, and in the spinning forming step, a spinning cutter assembly is used for conducting spinning on the cylinder subjected to flanging forming; and the spinning cutter assembly comprises a first spinning cutter for primarily spinning the outer wall of the cylinder, a second spinning cutter for spinning the end part of the cylinder and a third spinning cutter for finely spinning the outer wall of the cylinder; and (3) hub forming, specifically, a spoke obtained in the step (1) and the rim obtained in the step (2) are composited to obtain a composite area, the composite area is welded, and a hub is obtained. In the process, the spoke and the rim are separately molded and manufactured, so that the modular line production of hub production is realized, the yield of the hub is greatly improved, the lightweight design of the hub is realized, and the driving performance of an automobile is improved. In addition, the problems that in the rim forming process, die attaching is not achieved, and the rim wall is spun too thin can be solved.

A failure diagnosis method for a brake system of a vehicle determines whether the failure occurs in a regenerative braking device, a front-wheel friction braking device or a rear-wheel friction braking device. The method may include comparing a driver's required acceleration / deceleration with a current acceleration / deceleration of the vehicle, determining that a failure has occurred in the brake system of the vehicle when the driver's required acceleration / deceleration is different from the current acceleration / deceleration of the vehicle and comparing a driver's required braking torque with a regenerative braking maximum torque, and determining that the failure does not occur in the brake system of the vehicle when the driver's required acceleration / deceleration is substantially equal to the current acceleration / deceleration of the vehicle.

The invention relates to a friction brake for locking cylindrical parts by four stop blocks. The friction brake comprises such parts as a base, stop block parts, a slide way mechanism, a wedge block mechanism, a driving rod and a driven rod. The driving rod, the driven rod and the slide way mechanism form an altered crank slide block mechanism; a hydraulic motor drives the driving rod to rotate through a coupling; and the driven rod is enabled to push the slide way mechanism to move in the vertical direction so as to drive the stop blocks to move up and down. Meanwhile, the stop blocks respectively finish the actions of braking and releasing under the effects of a conical surface of the base and a wedged part under the wedge block mechanism. When the stop blocks lock a brake rod in a lowest point, a pressure angle on the driven rod is 90 degrees, and the slide way mechanism and the stop blocks are self-locked. The friction brake is compact in structure, smaller in weight and size and easy to arrange, can realize mechanical self-locking in the locking position, is high in braking reliability, can perform braking on whole cylindrical parts, is long in braking distance, and enables the axial braking performances of the cylindrical parts to become better.

A braking distance control device employed for an electrically driven work vehicle includes a safety vehicle speed calculation unit that calculates a safety vehicle speed at which a braking distance provided by use of an electric brake device becomes less than or equal to a threshold value, based on gradient information, payload information, road surface friction information, vehicle speed information, and a braking torque characteristic of electric motors: a critical vehicle speed for deceleration calculation unit that calculates a critical vehicle speed for deceleration at which deceleration provided by use of the electric brake device becomes less than or equal to a threshold value; and an operation judgment unit 14 that judges a setting of notification, based on pedal operation amounts.

The invention relates to the technical field of cranes, and discloses a crane with a slide rail anti-skid function, comprising a frame body, slide rails are fixedly connected to both sides of the frame body, and sliders are slidably connected to the top of the frame body, Both the front and the rear of the slider are slidably connected with push blocks, the bottom of the slide rail is provided with a collection device, the inner wall of the frame is provided with a discharge device, and the inside of the slider is hollowed out. , and the inner rotation of the slider is connected with a roller, the bottom of the roller protrudes from the outside of the slider and contacts with the surface of the turntable, the inner rotation of the slider is connected with a rotating rod, and there is a Spring, the inner wall of the rotating rod is fixed with a block. When the roller slips in the present invention, the rotating rod will reset and drive the sliding rod to move to the left and be inserted into the card slot, so that the sliding block can be limited and can Monitor the crane at all times to prevent slipping accidents.

The invention relates to a permanent magnet eddy current linear braking system for elevator testing. The permanent magnet eddy current linear braking system for elevator testing is applied to a safety tongs testing experiment in an elevator testing system and is used for braking a testing stand loaded with safety tongs when the safety tongs fail. The permanent magnet eddy current linear braking system for elevator testing comprises a magnetic steel group, a braking guide rail and a transverse movement mechanism. The magnetic steel group is arranged on opposite corners on two sides of the testing stand and generates a high-intensity magnetic field in the power-up state. Two ends of the braking guide rail are fixed on a beam of a testing tower through a guide rail installation support, one end of the braking guide rail extends into a gap between the N pole and the S pole, and the braking guide rail and the magnetic steel group have relative movement. The transverse movement mechanism is arranged on the beam of the testing tower, is aligned at the end of the braking guide rail and connected with the braking guide rail, and drives the braking guide rail to move transversely to change the contact area between the braking guide rail and the magnetic steel group. The permanent magnet eddy current linear braking system achieves permanent magnet braking of the testing stand and reduces mechanical friction in a conventional braking system.

The color functional road surface features that it is porous polymer concrete layer comprising white cement 200-500 weight portions, stone material 500-2000 weight portions, vinyl acetate copolymer 10-200 weight portions, inorganic pigment 0.5-20 weight portions, dibutyl phthalate 0.5-90 weight portions, aluminum silicate or fine silica powder 10-100 weight portions, antiageing fiber 0.5-10 weight portions and water 70-200 weight portions. The color functional road surface has good water permeability and is color fast.

A brake system, and a method for operating a brake system of a vehicle. To reduce a braking force, brake fluid is able to be discharged from the braking device via a cross-section adjusting member which connects a delivery device to the braking device, in a controlled and / or regulated manner, into an intermediate reservoir and is delivered to the main brake cylinder using the delivery device. The discharge of the brake fluid from the braking device of the brake system takes place, at least at times, at a discharge volume flow that is greater than the maximum delivery volume flow of the delivery device, and when a certain operating state of the braking system occurs, the discharge volume flow is reduced.

The invention provides a method, device and system for determining the head setting amount of a vehicle set and a computer readable storage medium. The method comprises the steps of building a head setting amount lf model of the vehicle set according to a first vehicle set humping parameter, and acquiring the current speed V of vehicle set humping, and determining the vehicle set head setting amount lf according to the current speed V and the vehicle set head setting amount lf model. In the model of the head setting amount lf, the braking energy height Hj of the speed reducer is multiplied bythe braking energy height use coefficient R of the speed reducer; the braking energy height use coefficient R of the speed reducer is smaller than 1, so that the calculated head setting amount can becorrespondingly reduced, the speed reducer can be braked in advance, the braking distance is increased, and the probability of overspeed of special vehicles can be effectively reduced.

The invention discloses a high-power diesel automobile hydraulic braking inertia booster, a fixed reducer (12) on the rear axle of the automobile, an automobile drive shaft (9) connected in series with the drive shaft gear (10), and the reducer input gear (11) meshing with the drive shaft Gear (10), the inertia disc (5) is installed on the output shaft of the reducer and the cam disc (4) is suspended, the brake caliper (3) is fixed on the lower part of the cam disc (4), and the inertia disc (5) is put into the brake caliper ( 3) In the mouth, the brake caliper (3) is connected to the piston of the master cylinder (2), the connecting rod of the piston of the master cylinder (2) is connected to the brake pedal (1), and the roller is installed in the groove of the cam disc (4) ( 8), the top corner of the triangular plate lever (7) is fixed on the roller (8), the bottom corner of the triangular plate lever (7) is connected to the booster pump (6) piston ejector rod, and the piston of the triangular plate lever (6) is connected to the brake cylinder. The invention has sufficient power source to provide brake braking, flexible forward and backward braking, no fuel consumption for braking, and good braking efficiency and safety factor.