An electro-pneumatic tractor protection valve assembly (8) including a trailer supply input (84) for receiving a supply pressure, a trailer service output (87) for delivering a trailer supply pressure, a first supply input (81) for receiving a primary driver brake pressure, a second supply input (82) for receiving a secondary driver brake pressure, a dual brake valve (14) actuated by a brake pedal (10) and supplying the brake control pressures, a vent opening (86) for venting an internal conduit, a first electrically controlled pneumatic valve (92) to receive a first electric control signal for trailer assistance braking, and a trailer control output (85) for delivering a trailer brake control pressure. The valve assembly includes one single casing (8a) accommodating the first supply input (81), the second supply input (82), the trailer supply input (84), the trailer control output (85), the vent opening (86) and the trailer service output (87).

The disclosure relates to a method for operating a brake pedal unit of a vehicle, comprising feedback to a driver. The brake pedal unit has a multiplicity of pressure-sensitive or force-sensitive sensors. According to the disclosure, in the method, output signals of the multiplicity of pressure-sensitive or force-sensitive sensors are detected. At least one position and/or an orientation of the operator's foot relative to the foot support element is determined from the detected output signals. A feedback signal that characterizes the determined position and/or orientation is output at an output unit of the vehicle.

A control method includes at least one emission of a radar signal into an area that encompasses a base surface of the roadway section and a wheel of a vehicle, for example an electric bicycle. A radar frequency spectrum reflected on the base surface and on the wheel is subsequently detected using the radar sensor. A control unit actuates at least one brake, for example a front wheel brake of the electric bicycle, as a function of a difference between the vehicle speed and the wheel speed recognized based on the detected radar frequency spectrum.

The present disclosure provides systems and methods that employ tolerance values defining a level of vehicle control precision for motion control of an autonomous vehicle. More particularly, a vehicle controller can obtain a trajectory that describes a proposed motion path for the autonomous vehicle. A constraint set of one or more tolerance values (e.g., a longitudinal tolerance value and/or lateral tolerance value) defining a level of vehicle control precision can be determined or otherwise obtained. Motion of the autonomous vehicle can be controlled to follow the trajectory within the one or more tolerance values (e.g., longitudinal tolerance value(s) and/or a lateral tolerance value(s)) identified by the constraint set. By creating a motion control framework for autonomous vehicles that includes an adjustable constraint set of tolerance values, autonomous vehicles can more effectively implement different precision requirements for different driving situations.

A brake control device for vehicles with bar handle includes: a wheel speed obtaining unit obtaining a speed of a wheel; an estimated vehicle body speed setting unit setting an estimated vehicle body speed; a control unit performing fluid pressure control to raise, reduce or hold a brake fluid pressure; and a bank angle obtaining unit obtaining a bank angle. The estimated vehicle body setting unit sets a limit value of a change amount when the estimated vehicle body speed decreases at a time of braking of the vehicle, and sets the estimated vehicle body speed based on the limit value when a deceleration amount of the speed of the wheel on a braked side is larger than the limit value, and the estimated vehicle body speed setting unit corrects the limit value so that the change amount decreases as the obtained bank angle increases.

A cruise control arrangement is provided with a cruise control speed function and where the cruise control arrangement is provided with a set cruise speed value and a set brake cruise speed value, and where the cruise control brake function is active when the vehicle travels downhill, where the cruise control arrangement is adapted to activate at least one auxiliary brake when the vehicle speed reaches the set brake cruise speed, to apply a service brake of the vehicle in order to reduce the speed of the vehicle to a predefined first speed if the vehicle speed exceeds the set brake cruise speed when the least one auxiliary brake is delivering full brake power, where the predefined first speed is lower than the set brake cruise speed. Undesired acceleration during downhill travel can be avoided when the brake power of the auxiliary brake is not sufficient. Further, a required downshift can be delayed, which will improve the fuel consumption of the vehicle.

A hydraulic brake device includes (a) a master fluid passage for supplying a working fluid from a master cylinder to a wheel brake, (b) a master shut-off valve provided in the master fluid passage, (c) a return fluid passage, (d) a return passage opening valve provided in the return fluid passage, (e) an electromagnetic control valve provided in the return fluid passage and configured to control a flow of the working fluid or to allow a flow of the working fluid without controlling, and (f) a stroke simulator having first and second fluid chambers defined by a partition member, the first fluid chamber being connected to the master fluid passage between the master shut-off valve and the master cylinder, the second fluid chamber being connected to the return fluid passage on one on opposite sides of the return passage opening valve that is nearer to the wheel brake.

The present invention refers to a brake assist system (1) for cyclist on a bicycle (100) including a braking system (101) having a braking member (105) capable of exerting a braking force (F.sub.B) on a front wheel (101) of the bicycle (100) by the effect of a force (F.sub.c) applied by the cyclist on a lever (103). The system (1) includes a sensor (2) for measuring the angular speed (.sub.1) of the front wheel (101) of the bicycle (100); an actuator (3) capable of exerting an actuator force (F.sub.A), connectable to said braking system of the bicycle so that the actuator force (F.sub.A) opposes the force (F.sub.c) applied by the cyclist on the lever (103), in order to reduce the braking force (F.sub.B); and a control module (4) configured for receiving, as an input, the signal representative of the angular speed (.sub.1) of the front wheel (101) and for determining from this a deceleration () of the front wheel (101).

A method for monitoring an implementation of an assistance braking specification, requested in an automated fashion by a brake system in a vehicle includes: detecting whether an assistance braking specification which is requested in an automated fashion is present; detecting an actual dynamics variable, the actual dynamics variable including wheel dynamics of at least one wheel of the vehicle and/or of a trailer, the actual dynamics variable being assigned to a wheel which is to be braked as a result of the assistance braking specification which is requested in an automated fashion; determining a reference dynamics variable, the reference dynamics variable including driving dynamics of the vehicle and/or of the trailer; and comparing the actual dynamics variable with the reference dynamics variable. When an assistance braking specification is present: a faultfree implementation of the assistance braking specification which is requested is detected if the actual dynamics variable deviates.

A vehicle braking control device is capable of further raising the speed at which vehicle vehicle-body deceleration increases when automatic braking processing implementation begins. Provided as a braking control device is a control device comprising: an acquisition unit that acquires an indicator; and a braking control unit that starts the implementation of automatic braking processing if a determination is made, on the basis of the indicator, that an automatic braking condition has been established. In the automatic braking process, the braking control unit restricts the supply of brake fluid to wheel cylinders corresponding to the rear wheels, and supplies brake fluid to wheel cylinders corresponding to the front wheels to increase the pressure of the wheel cylinders, thereby increasing the braking power for the front wheels and also giving the rear wheels braking power corresponding to the driving amount of a motor for parking.