An electric vehicle braking system including a braking controller, a front braking system, and a rear braking system. The front braking system includes a front friction brake and a front regenerative braking system. The rear braking system includes a rear regenerative braking system and excludes a friction brake. The braking controller is configured to detect the front regenerative braking has reached a maximum force, detect additional deceleration is required, and, in response to detecting the front regenerative braking has reached the maximum force and detecting additional deceleration is required, apply the front friction brake.

An apparatus for controlling an ESC-integrated regenerative braking system that includes a pedal cylinder unit connected to a reservoir unit to generate a hydraulic pressure by pressing a brake pedal, a motor driven by an electrical signal output in response to a displacement of the brake pedal, a master cylinder unit connected to the pedal cylinder unit to form a hydraulic pressure for braking through a master piston moving by the driving of the motor, a control unit configured to detect a leakage of oil, based on a change in pressure in a hydraulic passage, during single-stage control, two-stage control, single-stage single-acting control, or two-stage single-acting control of the master cylinder unit, and a hydraulic control valve provided in a hydraulic passage for connecting the reservoir unit to a wheel cylinder to brake each wheel, to be opened and closed under control of the control unit.

The present disclosure relates to an electrified vehicle capable of handling a situation where there may be an insufficient brake force during long-time braking by applying regenerative braking and to a braking compensation control method of the electric vehicle. The braking compensation control method includes determining whether a preset compensation control entry condition may be satisfied, determining a compensation brake torque for assisting in following a speed of a leading vehicle traveling ahead, and outputting the compensation brake torque through a motor when the compensation control entry condition may be satisfied.

An electronic control device is configured to control at least one electromagnetic valve mounted on a vehicle. The electronic control device includes a regenerative current detector configured to detect a regenerative current circulating through the at least one electromagnetic valve immediately after power supply to the at least one electromagnetic valve is stopped. The electronic control device further includes a regenerative current singularity detector configured to detect a regenerative current singularity that is a singularity in a temporal change of the regenerative current. The electronic control device further includes a regenerative current failure detector configured to detect a stuck failure of the at least one electromagnetic valve based on a detection result of the regenerative current singularity detector.

A braking method for a vehicle is provided. The method includes the following steps: obtaining a first state information of the vehicle, where the first state information includes a vehicle mass and a deceleration required by braking; calculating a braking torque required by the vehicle according to the first state information, and controlling an output of an electric braking torque according to the braking torque required by the vehicle; obtaining a current vehicle speed of the vehicle and a maximum electric braking exit speed; and; controlling, if the deceleration required by braking of the vehicle changes to zero, the vehicle to unload the electric braking torque when the current vehicle speed is less than the maximum electric braking exit speed. A braking device for a vehicle and a vehicle are further provided.

The invention relates to a device for energy recovery for an electrically driven motor vehicle. The device comprises an electric drive unit (16) for driving the motor vehicle and a permanent brake device (20) which is designed as a hydrodynamic retarder and is or can be drivingly connected to the electric drive unit (16). A waste heat recovery device (12) has an expansion machine (36) which is or can be connected to the permanent brake device (20) for energy recovery of a waste heat resulting from the braking of the permanent brake device (20). The invention also relates to a method for energy recovery in an electrically driven motor vehicle.

The invention relates to a device for energy recovery for an electrically driven motor vehicle. The device comprises an electric drive unit (16) for driving the motor vehicle and a permanent brake device (20) which is designed as a hydrodynamic retarder and is or can be drivingly connected to the electric drive unit (16). A waste heat recovery device (12) has an expansion machine (36) which is or can be connected to the permanent brake device (20) for energy recovery of a waste heat resulting from the braking of the permanent brake device (20). The invention also relates to a method for energy recovery in an electrically driven motor vehicle.

An energy storage tank defining a tank volume for heat transfer fluid and comprising a partition dividing the tank volume into a first volume and a second volume, wherein the partition is movable to/from any position between a minimum energy storage position corresponding to a minimum second volume, and a maximum energy storage position corresponding to a maximum second volume, the energy storage tank further comprising a biasing device being arranged such that movement of the partition away from the minimum energy storage position corresponds to storing energy in the biasing device, and movement towards the minimum energy storage position corresponds to releasing energy from the biasing device.

A brake device for a motor vehicle with two axles, including at least one axle with an electric traction motor for driving and braking at least one wheel arranged on the axle, where energy can be recovered by means of the traction motor during braking. Each wheel has a wheel brake. A pressure supply is provided in the form of a piston-cylinder unit, which can both build up pressure and reduce pressure. The pressure supply forms part of a pressure supply device, having at least two connections, switchably connected by respective valves, to the brake circuits, an ABS/ESP unit and/or an actuating unit. An open-loop and closed-loop control device controls the at least one electric traction motor and components of the pressure supply device such that a braking deceleration can be set by closed-loop control for each brake circuit and/or each axle, with different braking torques at the respective axles.

A braking control device is applied to, for example, a vehicle in which a regenerative braking force is generated on a front wheel by a regenerative generator provided on the front wheel. The braking control device includes an actuator configured to individually generate a front wheel friction braking force on the front wheel and a rear wheel friction braking force Fmr on a rear wheel of the vehicle; and a braking controller configured to control the actuator. In the braking control device, the braking controller is configured to regulate the front and rear wheel friction braking forces based on a normative regenerative force corresponding to a rotation speed equivalent value equivalent to a rotation speed of the regenerative generator.