B60T2220/04

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).

PS15 BASE CURRENT SAMPLING IN SYNCHRONOUS MODE

Multiple sensors are coupled to a first pin of a PSI5 transceiver to receive a sensor bus signal. A Manchester decoder is coupled to a second pin and a battery is coupled to a third pin. A comparator receives a first voltage that is proportional to a current on the sensor bus signal and a second voltage that is proportional to a base current on the sensor bus signal and sends a data output signal to the second pin. A sample-and-hold circuit captures a third voltage used to effect the second voltage responsive to a high value on a base current sampling signal. A base-current-renewal circuit detects edge transitions on the data output signal and when the data output signal has no edge transitions for a period of time greater than a gap time defined in a PSI5 standard, sets the base current sampling signal high.

ELECTRIC BOOSTER HAVING FORCE-FEEDBACK-CONTROL STRUCTURE

An electric booster is provided having a force-feedback-control structure. The electric booster includes a master piston having a nut unit rectilinearly moved in a booting cylinder space by receiving driving power generated by a motor and a hydraulic pressure generated by a pedal effort. A first screw has a first end connected to the motor and a second end extending into the boosting cylinder, and is rotated by the motor operating with the brake pedal. A second screw is disposed to face the first screw to have a separation space . A connecting member connects the first screw and the second screw. A pressure balancing member has contact surfaces in contact with the second end of the first screw and the connecting member, respectively, and is deformed by a difference between two pressures when applied to the contact surfaces in a longitudinal direction of the first screw, respectively.

Electric booster having force-feedback-control structure

An electric booster is provided having a force-feedback-control structure. The electric booster includes a master piston having a nut unit rectilinearly moved in a booting cylinder space by receiving driving power generated by a motor and a hydraulic pressure generated by a pedal effort. A first screw has a first end connected to the motor and a second end extending into the boosting cylinder, and is rotated by the motor operating with the brake pedal. A second screw is disposed to face the first screw to have a separation space. A connecting member connects the first screw and the second screw. A pressure balancing member has contact surfaces in contact with the second end of the first screw and the connecting member, respectively, and is deformed by a difference between two pressures when applied to the contact surfaces in a longitudinal direction of the first screw, respectively.

Rotation angle detection device for vehicle brake

A rotation angle detection device for a vehicle brake includes: a housing accommodating a magnetic detection unit; a rotation member supported to be rotatable relative to the housing; and a magnet held by the rotation member and rotating integrally with the rotation member, in which the magnetic detection unit includes a stroke detection unit and a switch detection unit, the stroke detection unit detects a rotation angle by which the rotation member has rotated from a reference position based on a magnetic force of the magnet, the switch detection unit detects that the rotation member has rotated from the reference position by a predetermined angle or more, and at least a portion of the stroke detection unit is disposed at a position where the portion overlaps with the magnet in an axial direction of a rotational axis of the rotation member.

BRAKE CONTROL APPARATUS FOR VEHICLE
20200353819 · 2020-11-12 ·

A brake force control apparatus allocates all of required brake force to a target front wheel friction brake force when the required brake force is equal to or smaller than a maximum regeneration brake force. The apparatus decreases the target regeneration brake force by a first predetermined amount at a first time point at which a front wheel acceleration varies from a value larger than a first acceleration threshold to a value equal to or smaller than the first acceleration threshold. The apparatus increases the target regeneration brake force in such a manner that the target regeneration brake force coincides with the required brake force, if the front wheel acceleration becomes larger than a second acceleration threshold in a period from the first time point to a second time point at which a predetermined time elapses from the first time point.

Vehicle Brake Pedal with Pedal Resistance Assembly and Force/Position Sensor

A brake pedal assembly comprising a pedal and a pedal resistance force member operably coupled to the pedal. A damper pedal resistance force module defines an interior fluid-filled cavity. A shaft extends through the damper module and includes a piston mounted thereon and moveable through the fluid-filled cavity to generate a damper resistance force. A spring pedal resistance force module is adapted to generate a spring pedal resistance force. A pedal force sensing module is mounted to the pedal resistance force member. A pedal position sensor is mounted to the pedal resistance force member. A pedal force sensor is mounted to the pedal resistance force member.

Vehicle Braking Type Indication Systems And Methods
20200353903 · 2020-11-12 ·

A brake pedal portion is configured to be contacted by a driver; an arm portion is connected to the brake portion and is configured to, in response to force being applied to the brake pedal portion, move in a first direction away from a first predetermined position and toward a second predetermined position; a detent mechanism is configured to: apply a first biasing force to the arm portion in a second direction that is opposite to the first direction when a position of the arm portion is between the first predetermined position and a third predetermined position between the first and second predetermined positions; and apply a second biasing force to the arm portion in the second direction opposite to the first direction when the position of the arm portion is between the third and second predetermined positions, where the first biasing force is different than the second biasing force.

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.

Method and device for regenerative braking of transportation device

Provided are a regenerative braking method and device for a transportation device. A regenerative braking method through adaptation to a driving habit includes accumulating a deceleration level of a driver, determining a regenerative braking level based on the accumulated deceleration level, and controlling a torque of a motor based on the regenerative braking level.