B60T2220/04

Electric brake device
10899327 · 2021-01-26 · ·

Provided is an electric brake device capable of adjusting a clearance without making a driver feel discomfort, in a vehicle equipped with the electric brake device. A control device (2) of this electric brake device (DB) includes: a brake operation amount detector (24) to detect an operation amount to a brake operation member (27) of the vehicle; and an operation record flag storage unit (19) to store an operation record flag indicating a record of a latest operation performed by the driver to the brake operation member (27), on the basis of the operation amount detected by the brake operation amount detector (24). The control device (2) further includes a target clearance determination unit (17) to determine a target clearance with reference to the operation record flag stored in the operation record flag storage unit (19).

BRAKING CONTROL DEVICE

The present disclosure comprises a reservoir cutoff valve provided on a pipe and configured to be opened in a non-energization state; a simulator cutoff valve provided on a pipe and configured to be closed in a non-energization state; an operation determination circuit configured to determine whether the brake operation member is in an operation execution state in which the brake operation member is being operated is; and a current control circuit that, when the operation determination circuit determines that the brake operation member is not in an operation execution state, supplies a first current to the reservoir cutoff valve, and when the operation determination circuit determines that the brake operation member is in an operation execution state, supplies a second current greater than the first current to the reservoir cutoff valve.

CONTROL UNIT AND METHOD FOR OPERATING AT LEAST ONE VEHICLE DECELERATION DEVICE
20210009100 · 2021-01-14 ·

A control unit for at least one vehicle deceleration device of a vehicle. The control unit includes an electronics unit including a memory unit in which a characteristic curve is stored which specifies a relation between a first input variable specified by an operation of a brake actuation element of the vehicle, and a setpoint variable regarding a setpoint vehicle deceleration exerted on the vehicle using the at least one vehicle deceleration device. The electronics device newly specifies at least one characteristic curve value of the characteristic curve under consideration of a second input variable specified by the driver by an operation of an accelerator of the vehicle, a current traffic and/or environment situation, and/or an ascertained position of the vehicle and a position-specific item of traffic and/or environment information, and the correspondingly modified characteristic curve is stored in the memory unit.

Service brake actuation using a linear actuator

A fluid control system that has a fluid assembly with a piston defined within a chamber, an electrical system having a motor configured to selectively reposition the piston, a controller in communication with the electrical system, and a sensor in communication with the controller to identify a fluid pressure value. Wherein, the controller identifies a desired fluid pressure range and selectively repositions the piston with the motor until the fluid pressure value is within the desired fluid pressure range.

Method of rationalizing brake pedal position signal, master cylinder pressure signal and brake torque signal
10889283 · 2021-01-12 · ·

In a method, a master cylinder pressure signal, a brake pedal position signal and a brake torque signal provided by an electronic control unit of an anti-lock braking system are rationalized. The master cylinder pressure signal is rationalized against the brake pedal position signal, the brake pedal position signal is rationalized against the master cylinder pressure signal and the brake torque signal is rationalized against the brake pedal position signal. The rationalizations utilize a difference between a maximum value of the signal being rationalized recorded during a maximum value learn period and a minimum value of the signal being rationalized recorded during a minimum value learn period. The rationalization is successful when this difference is greater than a rationalization value.

METHOD FOR CONTROLLING ESC INTEGRATED BRAKING SYSTEM
20210001829 · 2021-01-07 ·

A method for controlling an ESC integrated braking system including: checking, by a control unit, whether a brake is in an on state or a standby state as the braking system is activated; checking, by the control unit, whether a current temperature value is in a low temperature state lower than specified reference temperature; and controlling, by the control unit, a current duty for driving a hydraulic control valve and a current component of a motor for driving a master cylinder according to the state of the brake and whether the current temperature value is in the low temperature state.

Electrical power connection in an emergency park brake system
10882498 · 2021-01-05 · ·

An emergency park brake system of an aircraft may include an electrical power interface, an electromechanical actuator, and a hydraulic brake valve. The electrical power interface may be configured to receive electrical power from a power source. The electromechanical actuator may be in selective power receiving communication with the electrical power interface and the electromechanical actuator may be mechanically coupled to and configured to selectively actuate the hydraulic brake valve. The electrical connection between the electromechanical actuator and the electrical power interface may be based on an emergency braking input.

Vehicle with starter aid

A vehicle starter aid system is provided for a vehicle having at least one driven axle and at least one non-driven axle. An electrically controllable brake system generates brake application signals as a function of input signals for the wheel brake actuators on the at least one driven axle. The inputs signals are received from a rotational speed sensor of the at least one non-driven axle and at least one signal-generator which generates signals which represent intended driving away of the vehicle from the stationary state and are different from the wheel rotational speed signals. An electronic brake control unit controls application of the wheel brake actuators of the at least one driven axle if the rotational speed signals of the rotational speed sensor correspond to zero wheel rotational speed and at the same time the signals of the signal-generator indicate the intended driving away of the vehicle.

DEVICE AND METHOD FOR DETERMINING AT LEAST ONE BRAKE CHARACTERISTIC VALUE OF A HYDRAULIC BRAKING SYSTEM OF A VEHICLE

A device for a hydraulic braking system of a vehicle. The device includes a processing unit, which is programmed to determine at least one brake characteristic value of the hydraulic braking system, the processing unit being programmed to determine the at least one brake characteristic value as a vehicle axle-specific brake characteristic value, which in each case corresponds to a ratio between a brake pressure in all wheel brake cylinders assigned to a shared vehicle axle of the vehicle and a vehicle axle braking torque exerted on the shared vehicle axle with the aid of the wheel brake cylinders. A method for determining at least one brake characteristic value of a hydraulic braking system of a vehicle, and a method for decelerating a vehicle with a hydraulic braking system and an electric motor usable as a generator, are also described.

VEHICLE DECELERATION CONTROLLER
20200398804 · 2020-12-24 ·

A vehicle deceleration controller includes: a brake pedal; an accelerator pedal which is operated when an acceleration/deceleration request of a vehicle is inputted; a target acceleration/deceleration setting part configured to set a target deceleration based on a deceleration operation of the accelerator pedal; and an acceleration/deceleration control part configured to, when the accelerator pedal is operated to decelerate the vehicle, provide deceleration control over the vehicle such that an actual deceleration follows the target deceleration set by the target acceleration/deceleration setting part. In a case where the brake pedal and the accelerator pedal are operated simultaneously, the acceleration/deceleration control part is configured to, when a required deceleration level based on a deceleration operation of the brake pedal is present nearer an acceleration side, compared to a previously-set reference deceleration, then provide deceleration control over the vehicle, such that the actual deceleration follows the reference deceleration.