Patent classifications
B60T8/1766
ELECTRONIC PARKING BRAKE SYSTEM AND CONTROL METHOD THEREFOR
An electronic parking brake system including: an electronic parking brake provided to generate a clamping force on a wheel of a vehicle; and a controller configured to estimate a weight of the vehicle based on a wheel pressure and a longitudinal acceleration of the vehicle at a time of service braking during driving, determine a clamping force required for parking based on the estimated weight of the vehicle during a parking operation, and operate the electronic parking brake to generate the determined clamping force.
ELECTRONIC PARKING BRAKE SYSTEM AND CONTROL METHOD THEREFOR
An electronic parking brake system including: an electronic parking brake provided to generate a clamping force on a wheel of a vehicle; and a controller configured to estimate a weight of the vehicle based on a wheel pressure and a longitudinal acceleration of the vehicle at a time of service braking during driving, determine a clamping force required for parking based on the estimated weight of the vehicle during a parking operation, and operate the electronic parking brake to generate the determined clamping force.
Vehicle brake system
A vehicle brake system installed on a vehicle equipped with an electric motor that applies a drive force to a wheel, including: a brake device configured to apply a braking force to the wheel; and a brake controller configured to control the braking force, wherein the brake controller is configured to execute a swinging-back reducing control for reducing swinging-back of a body of the vehicle on stopping by weakening the braking force immediately before the vehicle stops, based on a motor-rotation-speed-dependent running speed that is a running speed of the vehicle detected in dependence on a rotation speed of the electric motor.
Vehicle brake system
A vehicle brake system installed on a vehicle equipped with an electric motor that applies a drive force to a wheel, including: a brake device configured to apply a braking force to the wheel; and a brake controller configured to control the braking force, wherein the brake controller is configured to execute a swinging-back reducing control for reducing swinging-back of a body of the vehicle on stopping by weakening the braking force immediately before the vehicle stops, based on a motor-rotation-speed-dependent running speed that is a running speed of the vehicle detected in dependence on a rotation speed of the electric motor.
SYSTEM ARCHITECTURE OF AN ELECTRONIC BRAKING SYSTEM
A braking system for a vehicle, including: at least one pressure regulating module to set a setpoint brake pressure for at least one brake cylinder of a vehicle wheel; at least one wheel speed sensor to detect the wheel slip of the one vehicle wheel; at least one pressure control valve, assigned to the brake cylinder of a wheel, to control the brake pressure applied at the brake cylinder depending on the wheel slip; and a central processing unit to control the at least one pressure regulating module and the at least one pressure control valve at least starting from a brake signal and the detected data of the at least one wheel speed sensor, which has a direct connection to the central processing unit to transmit data detected by the wheel speed sensor.
SYSTEM ARCHITECTURE OF AN ELECTRONIC BRAKING SYSTEM
A braking system for a vehicle, including: at least one pressure regulating module to set a setpoint brake pressure for at least one brake cylinder of a vehicle wheel; at least one wheel speed sensor to detect the wheel slip of the one vehicle wheel; at least one pressure control valve, assigned to the brake cylinder of a wheel, to control the brake pressure applied at the brake cylinder depending on the wheel slip; and a central processing unit to control the at least one pressure regulating module and the at least one pressure control valve at least starting from a brake signal and the detected data of the at least one wheel speed sensor, which has a direct connection to the central processing unit to transmit data detected by the wheel speed sensor.
Method for distributing a braking torque, requested by a driver, over the axles of a motor vehicle
A method for distributing a braking torque requested by a driver over the axles of a motor vehicle. The wheels of the first axle are associated with a first friction brake device and a first electrical machine having a first efficiency and the wheels of the second axle are associated with a second friction brake device and a second electrical machine having a second efficiency, in which, according to the method, the allocation of the requested braking torque over the first and/or second axle and the determination of the components of the recuperation torques to be provided by the first and/or second electrical machine of the requested braking torque is carried out taking into consideration the current driving stability of the motor vehicle.
Method for distributing a braking torque, requested by a driver, over the axles of a motor vehicle
A method for distributing a braking torque requested by a driver over the axles of a motor vehicle. The wheels of the first axle are associated with a first friction brake device and a first electrical machine having a first efficiency and the wheels of the second axle are associated with a second friction brake device and a second electrical machine having a second efficiency, in which, according to the method, the allocation of the requested braking torque over the first and/or second axle and the determination of the components of the recuperation torques to be provided by the first and/or second electrical machine of the requested braking torque is carried out taking into consideration the current driving stability of the motor vehicle.
BRAKING CONTROL DEVICE
The braking control device includes a control amount derivation unit that derives a target vehicle braking force representing a target value of a vehicle braking force applied, and a braking control unit that controls a regenerative braking device and a frictional braking device based on the target vehicle braking force. When the target vehicle braking force is increased, the braking control unit executes a braking force application process of increasing the frictional braking force applied to the wheel so that such frictional braking force becomes larger than the regenerative braking force applied to the wheel. When the target vehicle braking force is increased, the braking control unit executes a switching process of switching at least a part of the frictional braking force applied to the wheel to the regenerative braking force to increase the regenerative braking force applied to the wheel after execution of the braking force application process.
BRAKING CONTROL DEVICE
The braking control device includes a control amount derivation unit that derives a target vehicle braking force representing a target value of a vehicle braking force applied, and a braking control unit that controls a regenerative braking device and a frictional braking device based on the target vehicle braking force. When the target vehicle braking force is increased, the braking control unit executes a braking force application process of increasing the frictional braking force applied to the wheel so that such frictional braking force becomes larger than the regenerative braking force applied to the wheel. When the target vehicle braking force is increased, the braking control unit executes a switching process of switching at least a part of the frictional braking force applied to the wheel to the regenerative braking force to increase the regenerative braking force applied to the wheel after execution of the braking force application process.