A force-feedback brake pedal system for cooperative braking of an electric or hybrid vehicle having jointly a regenerative braking system and a frictional braking system includes a brake pedal which is pivotally mounted around a shaft or a bearing, an electronic circuitry which is in electrical communication with the regenerative braking system and the frictional braking system of the vehicle, an actuator for providing force feedback in accordance with the regenerative breaking and friction breaking of the vehicle, the actuator is in mechanical communication with the brake pedal. The force-feedback brake pedal system further includes a compliant element arranged between the brake pedal and the actuator, and a position sensor which, during operation, measuring the deflections of the compliant element and transmitting data to the electronic circuitry.

A force-feedback brake pedal system for cooperative braking of an electric or hybrid vehicle having jointly a regenerative braking system and a frictional braking system includes a brake pedal which is pivotally mounted around a shaft or a bearing, an electronic circuitry which is in electrical communication with the regenerative braking system and the frictional braking system of the vehicle, an actuator for providing force feedback in accordance with the regenerative breaking and friction breaking of the vehicle, the actuator is in mechanical communication with the brake pedal. The force-feedback brake pedal system further includes a compliant element arranged between the brake pedal and the actuator, and a position sensor which, during operation, measuring the deflections of the compliant element and transmitting data to the electronic circuitry.

In an electrified vehicle, a vibration damping control device performs vibration damping control for canceling or reducing, with the use of regenerative braking, a predetermined vibration component by monitoring the vibration component and controlling a generator control device depending on the vibration component. A system control device determines whether the vibration damping control is performable based on at least a charge status of a battery. An anti-lock braking system control device transmits a request signal to the system control device while performing anti-lock braking system control. The system control device transmits a command signal to the vibration damping control device when the vibration damping control is determined to be performable and the request signal is received from the anti-lock braking system control device. The vibration damping control device performs the vibration damping control when the command signal is received from the system control device.

In an electrified vehicle, a vibration damping control device performs vibration damping control for canceling or reducing, with the use of regenerative braking, a predetermined vibration component by monitoring the vibration component and controlling a generator control device depending on the vibration component. A system control device determines whether the vibration damping control is performable based on at least a charge status of a battery. An anti-lock braking system control device transmits a request signal to the system control device while performing anti-lock braking system control. The system control device transmits a command signal to the vibration damping control device when the vibration damping control is determined to be performable and the request signal is received from the anti-lock braking system control device. The vibration damping control device performs the vibration damping control when the command signal is received from the system control device.

A vehicle includes a regenerative brake of a rotating electric machine and a friction brake which is a mechanical brake as braking means for applying a braking force to rotations of the left and right wheels at the front and rear of the vehicle. The vehicle also includes an SOC information obtaining part that obtains an amount of charge (SOC) of a battery of the vehicle and an ECU. The ECU may include a VSA modulator and an ACC-ECU that generate, without a braking operation of the driver, a regenerative braking force with the regenerative brake and a friction braking force with the friction brake. The ECU prohibits an operation of the VSA modulator and/or an operation of the ACC-ECU according to a temperature of the friction brake and the amount of charge (SOC) of the battery.

A vehicle includes a regenerative brake of a rotating electric machine and a friction brake which is a mechanical brake as braking means for applying a braking force to rotations of the left and right wheels at the front and rear of the vehicle. The vehicle also includes an SOC information obtaining part that obtains an amount of charge (SOC) of a battery of the vehicle and an ECU. The ECU may include a VSA modulator and an ACC-ECU that generate, without a braking operation of the driver, a regenerative braking force with the regenerative brake and a friction braking force with the friction brake. The ECU prohibits an operation of the VSA modulator and/or an operation of the ACC-ECU according to a temperature of the friction brake and the amount of charge (SOC) of the battery.

Braking of a vehicle and a trailer can be balanced when regenerative braking of the vehicle is activated. The activation of regenerative braking of the vehicle can be detected. Responsive to detecting that regenerative braking of the vehicle is activated, one or more brakes of the trailer can be caused to be activated. Thus, the braking effectiveness of the vehicle and the braking effectiveness of the trailer can be substantially balanced. As a result, a possible push force from a trailer to the vehicle towing the trailer can be reduced, which, in turn, can help to avoid unwanted movements of the trailer (e.g., swaying or jackknifing).

An electric vehicle may include a battery, a drive axle, a drive wheel coupled to the drive axle, and a combined motor and brake unit. The combined motor and brake unit may be electrically coupled to the battery and mechanically coupled to the drive axle. The combined motor and brake unit may include a housing, an electric motor inside the housing and electrically coupled to the battery, a transmission inside the housing, a motor output shaft, a braking mechanism, and a motor input shaft. The transmission may transmit rotation of the electric motor to the drive axle and the drive wheel. The motor output shaft may couple the electric motor to the transmission. The braking mechanism may be coupled to the housing. The motor input shaft may couple the electric motor to the braking mechanism and input, to the electric motor, a braking force applied by the braking mechanism.

An electric vehicle may include a battery, a drive axle, a drive wheel coupled to the drive axle, and a combined motor and brake unit. The combined motor and brake unit may be electrically coupled to the battery and mechanically coupled to the drive axle. The combined motor and brake unit may include a housing, an electric motor inside the housing and electrically coupled to the battery, a transmission inside the housing, a motor output shaft, a braking mechanism, and a motor input shaft. The transmission may transmit rotation of the electric motor to the drive axle and the drive wheel. The motor output shaft may couple the electric motor to the transmission. The braking mechanism may be coupled to the housing. The motor input shaft may couple the electric motor to the braking mechanism and input, to the electric motor, a braking force applied by the braking mechanism.

The braking force control device detects an impossible state where one or some of the actuators are temporarily unable to generate a negative driving force, and a predictive state where one or some of the actuators are predicted to become unable to generate a negative driving force. Every time the coasting state occurs before establishment of the impossible state and after establishment of the predictive state, the braking force control device gradually increases the negative driving force generated by the corresponding one or ones of the actuators. Even when the coasting state occurs in the impossible state, the braking force control device does not cause the corresponding one or ones of the actuators to generate a driving force. Every time the coasting state occurs after the impossible state, the braking force control device gradually decreases the negative driving force generated by the corresponding one or ones of the actuators.