B60T8/326

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.

Device for a Brake Pedal Force-Travel Emulator with Force and Displacement Sensor and Corresponding Process
20200377066 · 2020-12-03 ·

Device for a brake travel emulator with at least one integrated sensor, comprising a housing (5), a force sensor (18) both being connected to a middle part of a connection means (4). The force sensor (18) being arranged at a static unit (2), the housing (5) further comprising at least one conical compression spring (6), an axially sliding component (7), a connecting rod (9) comprising a varying diameter geometry, an oscillating means (48) capable of creating an electric field, and a displacement sensor (46), the force sensor (18) further comprising, a micro-controller (50), means for receiving applied force (41) and at least four coils (30, 31, 32, 33).

Brake operating device

A brake operating device in which an operation of a brake pedal can be detected easily by a simple structure is provided. The brake operating device 1 comprises: a pusher 19, 20 connected to a brake pedal 2; a hydraulic system 5 in which fluid is held between the pusher 19, 20 and a pushing element 27 to transmit a thrust force of the pusher 19, 20 to the pushing element 27; a first elastic mechanism 23a, 23b that establishes an elastic force to isolate the pusher 19, 20 away from the pushing element 27; a cylinder 18 holding the pusher 19, 20 while restricting a withdrawal limit of the pusher 19, 20 in a direction away from the pushing element 27; and a second elastic mechanism 37 that is arranged at a position to push the cylinder 18, and that establishes an elastic force against the elastic force in the direction to isolate the pusher 19, 20 away from the pushing element 27.

Control system for vehicle

A vehicle control system is provided, which includes an operating amount detector configured to detect an operating amount by an operator, of an operation mechanism comprising at least one of an accelerator pedal and a brake pedal, a speed detector configured to detect a vehicle traveling speed, a reaction-force generator configured to generate a reaction force of the pedal, and a controller. The controller includes a processor to execute an acceleration calculating module to calculate an acceleration based on the traveling speed and the operating amount, a rigidity characteristic setting module to set the reaction force so that a rigidity value that is a ratio of the reaction force to the operating amount increases as the acceleration increases, and a reaction-force control module to control the reaction-force generator so that the reaction force generated by the reaction-force generator becomes the reaction-force value set by the rigidity characteristic setting module.

BRAKE SYSTEM AND METHOD FOR OPERATING A BRAKE SYSTEM OF THIS KIND

A brake system for a motor vehicle with at least four hydraulically activated wheel brakes, including for each of the wheel brakes an electrically activated first wheel valve which is designed to be open when de-energized and an electrically activated second wheel valve which is designed to be closed when de-energized, a first electrically activated pressure source, which is connected to the first wheel valves via a first brake supply line, a second electrically activated pressure source, and a pressure medium reservoir vessel which is, in particular, at atmospheric pressure, wherein the second electrically activated pressure source is connected to the second wheel valves via a second brake supply line, and a method for operating said brake system.

Haptic feedback for decoupled brake system
10800389 · 2020-10-13 · ·

A vehicle braking system includes a brake pedal, a master cylinder, a braking circuit with a wheel cylinder, a brake pressure generator for brake-by-wire braking, and a pedal feel simulator. In response to detecting impending wheel lock-up, a controller conducts an anti-lock braking routine during which the controller is programmed to create an artificial haptic feedback pulse to the brake pedal by opening a normally-open isolation valve between the master cylinder and the brake circuit to move a master cylinder piston until a compensation port opens.

Vehicle brake control apparatus
10801620 · 2020-10-13 · ·

When an ON operation of an electric parking brake apparatus is performed when a vehicle is moving, a vehicle brake control apparatus executes an EPB stop process in order to stop the vehicle by braking force generated by a hydraulic brake apparatus. If a hydraulic brake malfunction wheel, at which the hydraulic brake apparatus cannot generate braking force properly, is detected during a time period from the beginning of the EPB stop process to the stop of said vehicle, the vehicle brake control apparatus makes the hydraulic brake apparatus stop generating braking force at wheels including the hydraulic brake malfunction wheel. Meanwhile, the vehicle brake control apparatus makes the electric parking brake apparatus start generating braking force at a rear wheel. Subsequently, the vehicle brake control apparatus makes the electric parking brake apparatus start generating braking force to the other rear wheel.

ELECTRONIC BRAKE SYSTEM
20240010173 · 2024-01-11 ·

Disclosed herein is an electronic brake system. An electronic brake system according to one aspect of the present disclosure includes a pedal unit connected to a brake pedal and operated by a driver's pedal effort and a brake operating unit for generating pressure of a pressing medium for braking a vehicle based on a signal output in response to a displacement of the brake pedal, wherein the pedal unit may include a pedal displacement actuator for adjusting the displacement of the brake pedal from a first position to a second position when the vehicle enters an autonomous traveling mode in which a braking operation is not required by the driver, the brake operating unit may include a first controller for controlling the generation of the pressure, and when the vehicle enters the autonomous traveling mode, the first controller may control the pedal displacement actuator to displace the brake pedal from the first position to the second position.

BRAKE SYSTEM FOR AN ARTICULATED VEHICLE
20200290617 · 2020-09-17 · ·

A brake system for an articulated vehicle is disclosed. The brake system includes a brake assembly coupled to a traction device, the brake assembly being configured to apply a brake-assembly pressure based on one of a hydro-mechanical pressure signal and an electro-mechanical pressure signal. A blocking valve is configured to block the hydro-mechanical pressure signal when closed. A brake controller, is configured to transmit an isolation signal configured to close the blocking valve and transmit an ABS control signal that is based on a commanded ABS brake pressure.