A vehicle has a frame, a straddle seat, front right and left wheels, a rear wheel, a steering assembly, a motor, front right and left brakes, a rear brake, and an electronic brake control unit. The electronic brake control unit has a pump, a valve box and an electronic controller. The electronic controller is electronically connected to the pump, and valves of the valve box for controlling their operation. A hand brake lever actuates a first master cylinder and thereby actuates the front brakes through the valve box. A foot brake lever actuates a second master cylinder and thereby actuates the rear brake through the valve box.

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 heavy-duty vehicle includes a chassis, a wheel supporting the chassis, a drive system, a service brake, a drive system controller, and a service brake controller. The drive system includes a motor associated with the wheel. The motor is configured to propel the wheel and to apply a dynamic brake torque to the wheel. The service brake is associated with the wheel and configured to apply a service brake torque to the wheel. The drive system controller controls operation of the motor. The drive system controller selectively modulates the dynamic brake torque to the wheel based on traction conditions. The service brake controller controls operation of the service brake. The service brake controller may selectively modulate the service brake torque to the wheel based on the traction conditions. Modulation of the dynamic brake torque may be disabled during modulation of the service brake torque.

A heavy-duty vehicle includes a chassis, a wheel supporting the chassis, a drive system, a service brake, a drive system controller, and a service brake controller. The drive system includes a motor associated with the wheel. The motor is configured to propel the wheel and to apply a dynamic brake torque to the wheel. The service brake is associated with the wheel and configured to apply a service brake torque to the wheel. The drive system controller controls operation of the motor. The drive system controller selectively modulates the dynamic brake torque to the wheel based on traction conditions. The service brake controller controls operation of the service brake. The service brake controller may selectively modulate the service brake torque to the wheel based on the traction conditions. Modulation of the dynamic brake torque may be disabled during modulation of the service brake torque.

A control system for reducing rattle noise of a brake caliper may include a wheel speed sensor configured to detect a wheel speed of each wheel to which a caliper device is mounted, a controller configured to determine a vibration level value according to a road surface state by processing and analyzing a wheel speed signal received from the wheel speed sensor, and, when the road surface state of the road is determined as one in which unevenness exists, output a control signal for applying oil pressure for preventing rattle noise to a wheel cylinder of a brake device, a braking driver configured to generate and supply the oil pressure for preventing rattle noise according to the control signal output from the controller, and the wheel cylinder of the brake device, to which the oil pressure for preventing rattle noise, which is supplied by the braking driver, is applied.

A control system for reducing rattle noise of a brake caliper may include a wheel speed sensor configured to detect a wheel speed of each wheel to which a caliper device is mounted, a controller configured to determine a vibration level value according to a road surface state by processing and analyzing a wheel speed signal received from the wheel speed sensor, and, when the road surface state of the road is determined as one in which unevenness exists, output a control signal for applying oil pressure for preventing rattle noise to a wheel cylinder of a brake device, a braking driver configured to generate and supply the oil pressure for preventing rattle noise according to the control signal output from the controller, and the wheel cylinder of the brake device, to which the oil pressure for preventing rattle noise, which is supplied by the braking driver, is applied.

A brake system to couple between brakes and actuators provides a modular format that allows a plurality of braking modules to be coupled together at interfaces and coupled to other modules to handle a variety of different braking scenarios. Each braking module includes a housing forming a manifold for the delivery of fluid to the interfaces of the modules for exchange between the modules. The braking modules include a hydraulic valve coupled with a pressurized fluid source for delivering fluid to implement a braking function. The modules also include an electro-hydraulic valve configured for receiving electrical input signals and configured for delivering fluid from the pressurized fluid source to the hydraulic valve at an actuation pressure that is proportional to the system pressure based on the levels of the received electrical input signals. Module interfaces are positioned on respective sides of the housings for coupling the braking modules together and include a repeated pattern of apertures for aligning between the braking modules. The aligned apertures are configured for passing fluid at the system pressure and fluid at the tank pressure between the plurality of braking modules.

A brake system to couple between brakes and actuators provides a modular format that allows a plurality of braking modules to be coupled together at interfaces and coupled to other modules to handle a variety of different braking scenarios. Each braking module includes a housing forming a manifold for the delivery of fluid to the interfaces of the modules for exchange between the modules. The braking modules include a hydraulic valve coupled with a pressurized fluid source for delivering fluid to implement a braking function. The modules also include an electro-hydraulic valve configured for receiving electrical input signals and configured for delivering fluid from the pressurized fluid source to the hydraulic valve at an actuation pressure that is proportional to the system pressure based on the levels of the received electrical input signals. Module interfaces are positioned on respective sides of the housings for coupling the braking modules together and include a repeated pattern of apertures for aligning between the braking modules. The aligned apertures are configured for passing fluid at the system pressure and fluid at the tank pressure between the plurality of braking modules.

An agricultural vehicle-trailer-combination includes a traction vehicle including an engine and at least one ground engagement mechanism. A trailer is coupled to the traction vehicle. A service brake connected to the at least one ground engagement mechanism. The combination includes a sensor and a control unit disposed in communication with the sensor, wherein a slip or a slip gradient on the ground engagement mechanism is sensed between the ground engagement mechanism and the ground surface. A trailer brake disposed on the trailer is adjustably controlled by the control unit. The trailer brake is adjustably controlled when the service brake of the traction vehicle is actuated, and the trailer is braked by the trailer brake as a function of the slip or the slip gradient when the slip reaches or exceeds a predeterminable slip braking value or the slip gradient reaches a predeterminable slip gradient braking interval.

An agricultural vehicle-trailer-combination includes a traction vehicle including an engine and at least one ground engagement mechanism. A trailer is coupled to the traction vehicle. A service brake connected to the at least one ground engagement mechanism. The combination includes a sensor and a control unit disposed in communication with the sensor, wherein a slip or a slip gradient on the ground engagement mechanism is sensed between the ground engagement mechanism and the ground surface. A trailer brake disposed on the trailer is adjustably controlled by the control unit. The trailer brake is adjustably controlled when the service brake of the traction vehicle is actuated, and the trailer is braked by the trailer brake as a function of the slip or the slip gradient when the slip reaches or exceeds a predeterminable slip braking value or the slip gradient reaches a predeterminable slip gradient braking interval.