A method for braking an electric vehicle in which a first axle of an electric vehicle is decelerated by an electric motor of the electric vehicle and/or by a friction brake system of the electric vehicle.

This disclosure relates to an electrified vehicle configured to address an excess braking request, such as a braking request in excess of what can be met by an energy recovery mechanism, by selectively increasing the drag of the electrified vehicle. A corresponding method is also disclosed. An example electrified vehicle includes an energy recovery mechanism, an actuator configured to adjust a position of a moveable component influencing a drag of the electrified vehicle, and a controller. The controller is configured to instruct the energy recovery mechanism to meet a braking request and, when the braking request cannot be met by the energy recovery mechanism, the controller is configured to instruct the actuator to adjust the position of the moveable component to increase the drag of the electrified vehicle.

A towing device operably provided on a trailer for powering and controlling the trailer. The towing device has an actuator operably connected with the trailer during a towing operation. The towing device also has at least one switch provided in the actuator and operable to variably control at least one motor/generator provided on the trailer. The at least one switch is also operable to send a first signal to the at least one motor/generator via a first force exerted on the actuator by a vehicle, and wherein a first torque is applied to at least one wheel on the trailer via the at least one motor/generator being operably engaged with the at least one wheel. In addition, the towing device may include a controller operably connected to the at least one switch and to the at least one motor/generator, to control the torque applied by the at least one motor/generator.

Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.

A method for controlling corrected target hydraulic brake force to be generated by estimating friction coefficient variation depending on a bushing degree of a brake friction material and a season change, may include: determining a hydraulic brake torque required for hydraulic braking according to a driver's request brake torque; converting the hydraulic brake torque into a brake hydraulic pressure by use of a torque factor which is a friction capability of a brake friction material in the hydraulic brake torque; and determining a correction amount of the torque factor according to a season and a bushing degree of the brake friction material, which influences a friction coefficient which is an element of the torque factor.

A control device configured to control a vehicle is provided. The device comprises a traveling control unit configured to set an effect degree of a braking force to be given to the vehicle, and an output control unit capable of displaying, on a display device of the vehicle, an indicator representing an upper limit of a settable level of the effect degree.

The disclosed vehicle braking device controls a hydraulic brake system (2) and a regeneration brake system (3) mounted on a vehicle (1) in accordance with an acceleration value and a brake value, and includes a first divider (11), a second divider (12), and a controller (13). The first divider (11) divides a driver demand torque set according to the accelerator value into a target coast torque and a remaining torque. The second divider (12) divides a sum of a deceleration torque set according to the brake value and the target coast torque divided by the first divider (11) into a hydraulic-brake demand torque and a regeneration-brake demand torque. The controller (13) controls the hydraulic brake system (2), using the hydraulic-brake demand torque, and controls the regeneration brake system (3), using a total regeneration brake torque calculated from the remaining torque and the regeneration-brake demand torque. This configuration can improve the feeling of operating the brake, resolving the feeling of the shortage of deceleration.

A brake controller according to the present disclosure that changes an effect correlation value correlating to an effect of braking in a first braking system provided in a vehicle in accordance with a vehicle condition of the vehicle includes a control part generating a braking force by at least one of the first braking system and a second braking system different from the first braking system in a case where the vehicle condition is a first condition based on a braking distribution ratio different from that in a case where the vehicle condition is a second condition and a setting part setting the effect correlation values so as to be different from each other in the case where the vehicle condition is the first condition and in the case where the vehicle condition is the second condition.

Industrial vehicles that include a speed sensor configured to generate a speed sensor signal, a payload sensor configured to generate a payload sensor signal, an inclination sensor configured to generate an inclination sensor signal, a wheel motor connected to a wheel of the industrial vehicle, and a controller. The wheel motor includes an electric retarder device for applying a retardation force to the wheel. The controller is configured to receive the speed sensor signal, receive the payload sensor signal, receive the inclination sensor signal, determine a required retardation force for the industrial vehicle based on the payload sensor signal and the inclination sensor signal, determine an available retardation force for the industrial vehicle based on the speed sensor signal, and generate an output indicating the required retardation force for the industrial vehicle relative to the available retardation force for the industrial vehicle.

The disclosure relates to a method for operating a hydraulic braking system for a motor vehicle with an electrified drive train. The braking system comprises a brake booster. First, a braking request is registered and it is determined that the braking request is to be met by pure recuperative braking. In addition, an input member of the brake booster is shifted in the direction of a pressure generation unit so that it assumes an actuation position corresponding to the braking request. From here, the input member is then shifted back from the actuation position in a direction away from the pressure generation unit for hydraulic pressure relief. A control unit designed to carry out such a method is also disclosed. A braking system comprising such a control unit is also presented.