摘要:
The invention relates to a hydraulic brake system and a method for controlling a hydraulic brake system for a land vehicle having a predetermined holding capacity for hydraulic fluid and at least one wheel brake. The invention is characterized by detecting if a current holding capacity of the brake system has increased in relation to the predetermined holding capacity and, if so, by feeding hydraulic fluid to the at least one wheel brake in a controlled manner and an amount corresponding at least to the increase in capacity.
摘要:
An apparatus and method for determining the presence of excessive yaw rate in a vehicle by calculating an instability index that is a function of the vehicle yaw rate and generating an excessive yaw rate signal when the instability index exceeds a yaw rate threshold.
摘要:
A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.
摘要:
The invention relates to a hydraulic brake system and a method for controlling a hydraulic brake system for a land vehicle having a predetermined holding capacity for hydraulic fluid and at least one wheel brake. The invention is characterized by detecting if a current holding capacity of the brake system has increased in relation to the predetermined holding capacity and, if so, by feeding hydraulic fluid to the at least one wheel brake in a controlled manner and an amount corresponding at least to the increase in capacity.
摘要:
Hydraulic brake system and method for controlling a hydraulic brake system for a land craft, in which a quantity of hydraulic fluid delivered to wheel brakes during pressure build-up phases in antilock braking mode is limited so that substantially no hydraulic fluid thereof can flow to a master cylinder.
摘要:
A hydraulic brake system for a land vehicle, having a master cylinder, which is actuable by the driver by means of a pedal directly or via a brake booster disposed downstream of the pedal, for generating brake pressure in two brake circuits, each of which comprises two wheel brakes, wherein a hydraulic connection between the master cylinder and the wheel brakes is to be established or blocked by valve arrangements in dependence upon trigger signals from an electronic control unit in order to implement normal braking operations brought about directly by the driver or braking operations influenced by the electronic control unit in dependence upon measured variables, which are supplied to the electronic control unit and reflect the vehicle behaviour and/or the driver request, in that the brake pressure characteristic in the wheel brakes is varied by activating the valve arrangements associated therewith, wherein the electronic control unit is devised and programmed in such a way that, in order to set a brake pressure characteristic required for a specific vehicle behaviour, it supplies trigger signals, by means of which the setting of a respective brake pressure characteristic in the two brake circuits in predefined pressure stages (delta-p) is staggered in terms of time by a substantially predefined time stage (delta-t).
摘要:
What is described is a pressure generator for a vehicle brake system and also a method for mounting said pressure generator in said vehicle brake system. The pressure generator possesses a modular construction consisting of a pump subassembly and a receiving housing for said subassembly. The housing is designed in such a way that it has at least one fluid connection which, when the pressure generator is in the mounted state, is connected to a fluid inlet or a fluid outlet on a cylinder block belonging to the pump subassembly. Said pump subassembly is preferably constructed as a multi-piston pump and may comprise an actuating unit for the asynchronous actuation of the pumping pistons.
摘要:
A method for preventing the driven wheels of an automotive vehicle from spinning provides that whenever one of two driven wheels of one axle of the vehicle has a lower friction coefficient with the road surface than the other wheel of said axle and the one wheel shows a spinning tendency, brake pressure is built up at said wheel, with the rotational speed of the other wheel being measured, and whenever the rotational speed exceeds a specified value with respect to a vehicle reference speed, the brake pressure at the one wheel is reduced or maintained constant.
摘要:
An electric-powered vehicle having a drive system which includes at least one electric motor which is controlled and monitored by an electric control system for driving at least one vehicle wheel in a traction mode of the motor and also for selectively providing a contribution to overall braking torque when operated in a braking mode, and which also provides a hydraulic braking system which is actuated by the vehicle driver and which operates on at least the front wheels of the vehicle. The hydraulic braking torque produced by the driver by way of the hydraulic braking system, is adjusted in such a manner that, for the purpose of modulating the overall braking torque effective at the vehicle wheels the variation of the electric torque is arranged to stay within the "regenerative range" of operation of the electric motor, at least under predetermined operating conditions of the vehicle.
摘要:
A vehicle brake system having a hydraulically actuatable disc brake device which has an electromechanical operating device for activating a parking brake function, wherein the vehicle brake system has a hydraulic circuit with a hydraulic pressure source and also has activatable hydraulic functional elements in order to hydraulically actuate the disc brake device in accordance with a service braking action by a driver or an automatic activation, wherein the vehicle brake system also has a control device in order to actuate the electromechanical operating device in accordance with a parking braking action by the driver or an automatic activation of the parking brake function. Here, to avoid residual slippage torques, it is provided that the hydraulic circuit can be actuated by the control device such that, upon the triggering of the parking brake function through actuation of the electromechanical operating device, a hydraulic pressure is built up in the disc brake device, which hydraulic pressure is large enough to elastically deform hydraulic seal elements in the disc brake device corresponding to an elastic deformation during a service braking operation.