摘要:
An automatic deceleration control device includes an electronic control unit including a central processing unit, the electronic control unit configured to: acquire road-type information that is information about a type of a road on which a vehicle is traveling; set a maximum deceleration based on the road-type information; and output a signal to decelerate the vehicle at a first deceleration that is equal to or lower than the maximum deceleration, when an actual vehicle speed of the vehicle exceeds a target vehicle speed of the vehicle.
摘要:
A collision avoidance device includes, for example, a collision avoidance executor that can execute avoidance braking for avoiding collision with an object to be avoided; a determiner that determines whether a brake pedal is operated by a driver; and a collision avoidance controller that inhibits execution of the avoidance braking from ending and controls braking to apply a brake with a larger one of a required braking force through the operation of the brake pedal and a braking force by the avoidance braking, when the driver operates the brake pedal during the avoidance braking.
摘要:
A method of controlling the braking of a vehicle descending a slope. The method includes receiving one or more electrical signals each indicative of a value of a respective vehicle-related parameter. The method further includes detecting that the vehicle is descending a slope based on the value(s) of one or more of the vehicle-related parameters. The method still further includes automatically modifying an amount of brake torque being applied to at least certain of the wheels of the vehicle in response to the detection of the vehicle descending a slope by increasing the amount of brake torque being applied to one or more trailing wheels of the vehicle, and decreasing the amount of brake torque being applied to one or more leading wheels of the vehicle.
摘要:
The invention relates to a method for performing a braking maneuver using a braking assistant (9) in a motor vehicle (3), wherein the braking assistant (9) initiates an automatic braking maneuver when a distance between the motor vehicle (3) and an object (5) located ahead of the motor vehicle (3) is less than a minimum distance amin, an acceleration signal of the decelerating vehicle (3) is ascertained, and if the acceleration signal is positive the braking maneuver initiated by the braking assistant (9) is automatically interrupted.
摘要:
A vehicle ground-speed detecting apparatus, including a vehicle ground-speed sensor for detecting a ground-speed of a vehicle that is a speed of the vehicle relative to a road surface on which the vehicle is running, and generating an output signal representative of the detected vehicle ground-speed, and a proper vehicle ground-speed determining device for obtaining as sampling vehicle ground-speeds successive values of the vehicle ground-speed represented by the output signal from the vehicle ground-speed sensor, and determining a current one of the sampling vehicle ground-speeds as a current proper vehicle ground-speed when the current sampling vehicle ground-speed falls within a current permission range based on a current estimated vehicle ground-speed, the proper vehicle ground-speed determining device determining the current proper vehicle ground-speed by correcting the current sampling vehicle ground-speed when the current sampling vehicle ground-speed does not fall within the current permission range.
摘要:
The invention relates to a method and a device for controlling the operating brake pressure to pressure medium brakes in a vehicle combination comprising a tractor vehicle and at least one trailer vehicle. The vehicles in this case are connected by a conventional coupling device that includes standard brakeline connections. Forces developing in the coupling device are measured during the course of braking and are reduced to a predetermined value by adjusting the brake pressure for at least the brakes of the trailer vehicle in dependence on the longitudinal inclination of the tractor vehicle and of the actual deceleration thereof. The adjusted value of the brake pressure is retained for the purpose of being the starting value at the next braking of the vehicles.
摘要:
An antilock brake device for vehicles including a sensor for sensing the possibility of wheel lock during braking by means of overrunning rotation of a flywheel interlocked with the wheel to produce an output and a hydraulic controller for reducing the braking hydraulic pressure of the wheel brake upon reception of the output from the sensor and increasing the braking hydraulic pressure when the output from the sensor is eliminated. The flywheel and a transmission for transmitting the rotation of the wheel to the flywheel are arranged in the hollow portion of a hub of the wheel. Transmission mechanisms are employed to separate components within the hub to further reduce the overall size of the system. A variety of embodiments also disclose cooperation between front and rear brakes to improve braking response and efficiency.
摘要:
An antiskid apparatus provided in a communicating passage extending between a master cylinder and a brake cylinder in a brake system for a vehicle includes a flow rate control valve provided in a discharge passage which connects a pressure regulating chamber and a damping valve. The flow rate control valve includes a valve body having a flow path which defines a part of the discharge passage, and a valve member disposed in such a manner as to be reciprocal along the flow path. The valve member is normally separated from a valve seat formed on the valve body by the action of a spring in order to open the flow path. When subjected to pressure supplied from the pressure regulating chamber, the valve member is brought into contact with the valve seat to close the flow path. The valve member is provided with an orifice which provides communication between the flow path and a portion of the discharge passage on the side thereof which is closer to the pressure regulating chamber. Thus, the response of the flow rate control valve is improved, and it is possible to facilitate the production thereof and lower the production cost of the apparatus.
摘要:
A pressure modulator device in which a lever mechanism with variable transmission ratio is employed to minimize the lateral forces acting on the pressure relief piston and its guides during the stroke of the piston, in both the unloading and the reloading phases of pressure relief.
摘要:
An antiskid type brake system for vehicles including brakes, actuators, rotation sensors for monitoring the speeds of rotation of wheels, a controller, fluid pressure sensors and an upper limit value setter. The upper limit value setter sets an upper limit value of deceleration in such a manner that the upper limit value is set at a high level when the fluid pressure is high and at a low level when the fluid pressure is low, based on the fluid pressure sensed by the fluid pressure sensor associated with a wheel whose speed of rotation has been determined by the associated rotation sensor to be the highest of all the speeds of rotation of the wheels.