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.

A braking control apparatus includes a braking force control unit, a first abnormality detecting unit, a regenerative brake stopping unit, and a braking force compensating unit. The braking force control unit is configured to perform a braking force control by causing an engine brake, a regenerative brake, and a friction brake to operate in cooperation with each other. The regenerative brake stopping unit is configured to disconnect the regenerative brake from the braking force control, when an abnormality of the regenerative brake is detected by the first abnormality detecting unit. The braking force compensating unit is configured to perform a braking force compensation that utilizes the friction brake, from the detection of the abnormality of the regenerative brake until the regenerative brake is disconnected from the braking force control, by performing a feedback control on a deceleration rate at a time when the abnormality of the regenerative brake is detected.

An electronic parking brake system includes an electronic parking brake (EPB) including a pair of brake pads disposed on both sides of a brake disc rotating with a rear wheel of a vehicle, a piston provided to press the pair of brake pads, a nut member provided to press the piston, a spindle member provided to move the nut member, and an electric motor configured to rotate the spindle member; a wheel speed sensor configured to detect a wheel speed of the rear wheel; a G sensor configured to detect a longitudinal acceleration of the vehicle; an accelerator pedal sensor configured to detect an operation of an accelerator pedal of the vehicle; an EPB switch configured to receive a parking apply command or a parking release command from a driver; and a controller configured to control the electric motor, wherein the controller is configured to determine whether a residual clamping force is present in the EPB based on a rear wheel speed or the longitudinal acceleration at a time of departure of the vehicle after parking is released, and when the residual clamping force is present, release the residual clamping force through an additional parking release control.

A regenerative braking control method and a regenerative braking control device of the present invention control a drive source that generates a regenerative brake force in such a manner that an upper limit of regenerative deceleration when a driver executes manual control becomes smaller than an upper limit of regenerative deceleration when automatic control is executed.

A regenerative braking system and method include: a regenerative braking determination unit configured to determine whether or not a vehicle satisfies an entry condition for regenerative braking based on information collected by the vehicle; a calculation unit configured to calculate a hydraulic braking torque according to a pressure of a master cylinder and a target amount of a regenerative braking torque varied according to the pressure of the master cylinder, if the vehicle satisfies the entry condition; and a controller configured to perform braking of the vehicle based on the target amount of the regenerative braking torque and the hydraulic braking torque.

A method for monitoring an operability of a vehicle, the method including the steps of: traveling a route, which is defined, with the vehicle; detecting at least one power parameter of the vehicle, the at least one power parameter being characteristic for a power of a drive of the vehicle; comparing, in a first comparison, the at least one power parameter with historical data regarding the route traveled; and evaluating the operability of the vehicle based on the first comparison.

A method of controlling braking of a vehicle is provided. When a disconnector is disconnected and an auxiliary drive wheel is separated from a driving system, vehicle braking is performed with regenerative braking by a primary drive wheel motor during braking. Subsequently, the disconnector is connected based on a vehicle stability state, and then, braking is performed simultaneously on the auxiliary drive wheel and a primary drive wheel.

An apparatus includes a control apparatus for an electric vehicle. The control apparatus outputs an instruction to reduce the first regenerative braking force according to the physical amount regarding the stroke of the brake pedal to the electric motor. The control apparatus also outputs an instruction to add a braking force corresponding to a third regenerative braking force, which is a regenerative braking force corresponding to an amount of the reduction in the first regenerative braking force, to the brake actuation braking force when the signal regarding the pressing of the brake pedal is input after the signal regarding the return of the pressed accelerator pedal is input.

A braking system that uses a combination of a friction brake force and a traction motor brake force to slow or stop the rotation of the wheel. A friction brake may provide the friction brake force. A traction motor may provide the traction motor brake force. The braking system may include sensors that provide data for determining a wheel lock threshold for each wheel. The friction brake force and the traction motor brake force may be adjusted for each wheel to provide an applied brake force to the wheel that is less than or equal to the wheel lock threshold.