B60T2220/04

Brake assistance system and brake method

A brake assistance system comprising a brake pedal, a booster motor, a simulation motor, a planetary row coupling node, and a brake master cylinder, where the brake master cylinder is configured to provide a braking force for the vehicle. The brake pedal, the booster motor, and the simulation motor are separately coupled to the planetary row coupling node. The planetary row coupling node is configured to convert a torque of the brake pedal, a torque output by the booster motor, and a torque output by the simulation motor into an acting force acting on a piston rod in the brake master cylinder.

FAULT-TOLERANT BRAKE LOAD ALLEVIATION

A brake system control unit includes one or more sensor interfaces configured to receive a brake torque signal from a brake torque sensor. The brake system control unit also includes a torque estimator configured to generate an estimated brake torque signal based, at least in part, on a brake model and a brake actuator command. The brake system control unit further includes control circuitry configured to generate the brake actuator command to actuate a brake actuator of a brake system. The brake actuator command is generated based on a brake pedal command and a load alleviation command The load alleviation command is based on the brake torque or the estimated brake torque signal, depending on whether a sensor fault condition associated with the brake torque sensor is detected.

REGENERATIVE BRAKING CONTROL SYSTEM FOR A HYBRID OR ELECTRIC VEHICLE

A vehicle includes an electric machine and a controller. The controller is programmed to, in response to releasing an accelerator pedal during a first driving scenario that is based on a first set of navigation data, increase regenerative braking torque of the electric machine to a first value. The controller is further programmed to, in response to releasing the accelerator pedal during a second driving scenario that is based on a second set of navigation data, increase the regenerative braking torque of the electric machine to a second value that is less than the first value.

Foldable pedal apparatus for autonomous traveling vehicle

A foldable pedal apparatus of an autonomous traveling vehicle, is configured so that a pedal pad is popped-up by moving toward a driver to be exposed to enable an operation of the pedal pad by a driver in a manual driving mode situation in which the driver directly drives the vehicle, and the pedal pad moves forward and is in close contact with a vehicle body panel to disable the operation of the pedal pad by the driver in an autonomous traveling mode in which the driver does not directly drive the vehicle, facilitating a hidden state where exposure toward the driver is blocked.

VEHICLE BRAKE PEDAL WITH LINEAR PEDAL RESISTANCE AND DAMPENER ASSEMBLY AND FORCE/POSITION SENSOR
20220219659 · 2022-07-14 · ·

A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.

BRAKING CONTROL SYSTEM AND METHOD OF VEHICLE
20220289155 · 2022-09-15 ·

A braking control system and method of a vehicle are configured to safely stop the vehicle by determining whether a brake line fails via detecting a change in braking pressure and compensating for braking force through an engaging operation of an electric parking brake (EPB) when determining that the brake line fails in association with driver manipulation of the brake pedal. The braking control system includes: a vehicle speed detector; a wheel lock detector; a brake pedal operation detector that determines whether a brake pedal is operated; a brake line failure detector that determines whether the brake line fails when the brake pedal is operated; and a controller configured to engage the EPB when a current vehicle speed is equal to or greater than a predetermined vehicle speed, a current state is a wheel-unlock state, and the brake line fails.

INTEGRATED ELECTRONIC BRAKE SYSTEM AND CONTROL METHOD THEREOF

An integrated electronic brake system includes a main control section configured in a first area to receive one or more of a value from a pedal sensor, a value from a cylinder pressure sensor, a value from a wheel speed sensor, or an EPB signal to perform EPB control and drive a main braking valve and a braking motor for the main braking of a vehicle, and to drive an additional braking valve for the additional braking, a sub-control section configured in a second area to receive one or more of the value from the pedal sensor, the value from the wheel speed sensor, or the EPB signal to perform the EPB control and drive the main braking valve and the braking motor through a bypass circuit, and a connection bus connecting the first area and the second area mounted in one box to transfer signals between the main control section and the sub-control section.

INTEGRATED ELECTRONIC BRAKE APPARATUS AND CONTROL METHOD THEREOF

An integrated electronic brake apparatus may include: a main control unit configured to receive one or more of an EPB signal, a value from a pedal sensor, a value from a cylinder pressure sensor, or a value from a wheel speed sensor, perform EPB control, drive a main brake valve and a brake motor for main braking of the vehicle according to an operation of a pedal, and drive an additional brake valve for additional braking; an auxiliary control unit configured to receive one or more of the EPB signal, the value from the pedal sensor, or the value from the wheel speed sensor when a driving signal is inputted thereto, perform EPB control, and control the operation of the EPB to perform a pseudo ABS operation; and a connection bus configured to connect the first and second areas mounted in one box, and transfer a signal transmitted/received between the main control unit and the auxiliary control unit.

Foldable pedal apparatus for vehicle
11458838 · 2022-10-04 · ·

A foldable pedal apparatus for a vehicle includes a manual driving mode of the vehicle in which a driver drives a vehicle manually, and a pedal pad protrudes from a pedal casing and enters a pop-up state where the pedal pad is exposed toward the driver, and an autonomous driving mode of the vehicle in which the driver does not drive, and the pedal pad is retracted into the pedal casing and enters a hiding state where exposure of the pedal pad toward the driver is prevented. An interior design of the vehicle is optimized by allowing the pedal pad to pop up through a panel hole formed on a footrest panel when the pedal pad changes from the hiding state to the pop-up state.

SYSTEM AND METHOD FOR ACTUATOR INITIATED LAUNCH OR LINE LOCK CONTROL
20220289196 · 2022-09-15 ·

A control system for a vehicle may include a brake assembly having a brake actuator that operates brakes to apply braking forces to wheels of the vehicle when actuated, a propulsion system having a propulsion actuator operable to apply propulsive forces to at least some of the wheels when actuated, a hand-operated actuator, and processing circuitry operably coupled to the hand-operated actuator, the propulsion system, and the brake assembly to apply a balancing brake force to balance the propulsive forces generated based on actuation of the propulsion actuator while the vehicle is below a threshold speed and both the hand-operated actuator is actuated and the brake actuator is not actuated, and release the braking forces when the hand-operated actuator is released.