Abstract:
A steering device for adjusting a wheel steering angle of a wheel of a motor vehicle is disclosed, which steering device has a wheel guide member and a steering control unit. The steering control unit includes a basic steering function and an actuator travel control system for adjusting travel of the wheel guide member on the basis of a steering angle setpoint value.
Abstract:
A brake actuating unit for motor vehicles includes a brake master cylinder, a booster stage which is connected in front of the brake master cylinder, and a drive unit for driving the booster stage. In order to make comfortable braking operations possible, there is provision for the transmission both of the actuating force and of the boosting force to the primary piston of the brake master cylinder to take place by a force transmission module which has at least one elastic element and is arranged in the primary piston.
Abstract:
A power steering system includes a device for actively applying an additional steering torque as well as a device for actively applying a superposition steering angle.
Abstract:
The invention relates to a hydraulic power-assisted steering system comprising a steering gear and a hydraulic actuator for assisting actuation of the steering wheel by the driver of a vehicle, in particular a motor vehicle, comprising an electric motor which is coupled to the steering column and used as an additional torque actuator for actively applying an additional steering torque, also consisting of an electronic control and regulating unit (ECU), which includes a determination unit for determining a steering torque and an evaluating and selecting circuit, by means of which a total value for applying the additional steering torque is determined in consideration of the determined steering torque or a quantity derived therefrom and a selected basic characteristic curve of steering (basic characteristic curve), with the total value of the additional steering torque to be applied including a driver-dependent component and a driver-independent component.
Abstract:
In a hydraulic power steering system with a steering gear and a hydraulic actuator for supporting a steering wheel actuation by the driver of a vehicle, in particular a motor vehicle, with means associated therewith for actively applying an additional steering torque, the means for actively applying an additional steering torque includes at least one additional torque actuator and a means detecting the steering torque and being mounted as a module on a steering wheel shaft that connects the steering wheel to the steering gear.
Abstract:
The present invention relates to a vacuum brake force booster which includes a valve piston with a pedal push rod that is axially slidable in a vacuum housing, further including a control housing and a poppet valve connected to the valve piston, and an air filter. The air filter is arranged in the valve piston and forms, in conjunction with an associated valve piston sealing seat for the air filter abuttable thereon, a variable flow cross-section for the outside air that flows through the poppet valve.
Abstract:
A brake system for motor vehicles, which brake system can be actuated both by the vehicle driver and also independently of the vehicle driver in a “brake by wire” operating mode, is preferentially operated in the “brake by wire” operating mode, and can be operated in at least one fall-back operating mode in which only operation by the vehicle driver is possible. The brake system has inter alia an electrohydraulic pressure generating device (5) which outputs a brake system pressure, and a pressure modulation unit which has one inlet valve (6a-6d) and one outlet valve (7a-7d) per wheel brake (8, 9, 10, 11) for setting wheel-specific brake pressures derived from the brake system pressure, wherein the inlet and outlet valves (6a-6d, 7a-7d) output or transmit the brake system pressure when in the non-actuated state.
Abstract:
A brake system includes a hydraulic actuating unit, which can be actuated by way of a brake pedal, a travel simulator interacting with the hydraulic actuating unit, a pressure medium reservoir under atmospheric pressure assigned to the hydraulic actuating unit, a first electrically controllable pressure supply device, a second electrically controllable pressure supply device, an electronic control unit and an electronically controllable pressure modulation device for setting wheel-specific brake pressures. The brake system preferably operates in a “brake-by-wire” mode but can also operate in a fallback mode. The second electrically controllable pressure supply device can provide boost volume during braking in a fallback mode.
Abstract:
A brake system includes a brake pedal for actuating a master cylinder having two pistons and corresponding pressure chambers, where the system can be operated in a brake-by-wire mode and also a fallback mode. The system also includes a first electrically controllable pressure source and a second electrically controllable pressure source. The first and second electrically controllable pressure sources each have corresponding output flows that are connected together. The second electrically controllable pressure source can therefore provide output volume flow in the event the first electrically controllable pressure source fails.
Abstract:
A hydraulic power steering system with a steering gear and a hydraulic actuator for supporting a steering wheel actuation by the driver of a vehicle, in particular a motor vehicle, includes components for actively applying an additional steering torque, the components for actively applying an additional steering torque including at least one additional torque actuator and a steering torque detector being mounted as a module on a steering wheel shaft that connects the steering wheel to the steering gear.