Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.

A hydraulic block of an electronic braking device for a vehicle includes a first input port and a second input port configured to receive a brake fluid from a main braking system, at least one oil chamber connected to one input port of the first input port and the second input port, a first output port and a second output port configured to discharge the brake fluid to a plurality of wheel brake apparatuses, a first inlet line configured to connect the first input port and the first output port to each other, and a second inlet line configured to connect the second input port and the second output port to each other, a first outlet line bifurcated from the first inlet line, a second outlet line bifurcated from the second inlet line, and a valve mounting unit mounted with a plurality of valves.

An integrated braking device for a vehicle equipped with wheel brakes includes a reservoir, master cylinder, bi-directional pumps each using hydraulic pressure oil from the reservoir for generating hydraulic pressure in first direction to apply braking force to the wheel brakes or generating hydraulic pressure in opposing second direction to control the hydraulic pressure oil from flowing to the reservoir, a hydraulic motor for driving the bi-directional pumps, inlet valves for controlling a hydraulic pressure from flowing from the bi-directional pumps to the wheel brakes, traction control valves each disposed between the master cylinder and each bi-directional pump to control flow of the hydraulic pressure oil inside the master cylinder, and a braking control unit for braking the vehicle by transmitting a driving signal to solenoid valves in the integrated braking device, the bi-directional pumps, and the hydraulic motor to control a flow of the hydraulic pressure.

Methods and systems for operating a vehicle on a reduced traction surface are disclosed. A controller of the vehicle obtains at least one of: ambient information or GPS information, determines a derate increment size based on the ambient or GPS information, imposes a sustained derate by applying a torque limit on a braking torque of the vehicle based on the derate increment size in response to detecting a traction control event. The controller also determines a verification period and a derate reduction period based on the ambient or GPS information to reduce the sustained derate in response to detecting a lack of traction control event during the verification period at a rate determined by the derate reduction period.

A method for controlling the braking of a towed vehicle by a towing vehicle. The method includes receiving, at or by a brake actuator ECU, deceleration data of the towing vehicle and sensing, using a sensor, a longitudinal deceleration of the towed vehicle. The method also includes generating, at or by the brake actuator ECU, a brake signal based on the deceleration data and the longitudinal deceleration, sending the brake signal from the brake actuator ECU to an electric motor of a brake actuator of the towed vehicle, and applying, by the brake actuator, a hydraulic pressure to brakes of the towed vehicle based on the brake signal.

A hydraulic unit with open-loop and closed-loop control of brake pressure in a brake circuit of an electronically slip-controllable braking system of a motor vehicle includes a pump housing, a motor for driving a brake pressure generator, and an electronic control device for controlling the motor in line with demand. The motor and the control device are disposed on opposite sides of the pump housing, and a shaft bore extending all the way through is formed therebetween, in which shaft bore a motor shaft which can be rotationally driven is disposed. A sealing apparatus seals the shaft bore with respect to an interior of the electronic control device. A sealing apparatus which comprises an insertion seal is disposed on the pump housing in a seal socket and a mechanical preloading force is applied by a preloading apparatus. A method of assembling the hydraulic unit is also provided.

The present invention obtains a controller and a control method capable of appropriately emitting an emergency braking signal in a straddle-type vehicle.

A controller (60) and the control method according to the present invention control operation of a straddle-type vehicle (100) in which anti-lock brake control for a front wheel (3) and anti-lock brake control for a rear wheel (4) are executed. An acquisition section of the controller (60) acquires an anti-lock brake actuation state showing whether the anti-lock brake control is actuated for any of the wheels (3, 4). A determination section of the controller (60) determines a threshold value on the basis of the anti-lock brake actuation state. An output section of the controller (60) outputs an emergency braking signal command in the case where deceleration of the straddle-type vehicle (100) is higher than the threshold value.

A controller and a control method capable of optimizing a braking force generated by a brake system are obtained. During deceleration of a motorcycle, the controller and the control method according to the invention obtain an estimated vehicle body speed Vbe of the motorcycle that is estimated on the basis of speed information of a wheel, obtain a corrected vehicle body speed Vbc that is obtained by correcting an actually-measured vehicle body speed of the motorcycle to a low-speed side, cause the brake system to generate the braking force that corresponds to the estimated vehicle body speed Vbe in a state where the estimated vehicle body speed Vbe is higher than the corrected vehicle body speed Vbc, and cause the brake system to generate the braking force that corresponds to the corrected vehicle body speed Vbc in a state where the estimated vehicle body speed Vbe is lower than the corrected vehicle body speed Vbc.

A hydraulic block for a hydraulic unit of a slip-controlled, hydraulic power vehicle braking system including a primary piston, which protrudes from the hydraulic block and at which a pin-shaped signal generator holder for a permanent magnet is situated. The primary piston and the signal generator holder are enclosed with a tubular housing the shape of a cylindrical bowl, at which abut two converging, tangential walls.

The present disclosure relates to a vehicle having a park-by-brake module that can control an electronic parking brake coupled to the rear wheels of a vehicle. The park-by-brake module is coupled to an antilock brake module by a controller area network architecture. In one example, a first controller area network and a second controller area network are used to couple the park-by-brake module to the antilock brake module. The controller area network architecture allows the park-by-brake module to receive commands from various control modules. Based on the received commands, the park-by-brake module activates or deactivates the electronic parking brake.