摘要:
The present invention discloses an electronically controllable brake actuating system for automotive vehicles, including an unpressurized pressure fluid supply reservoir, a pressure source actuatable by an electronic control unit, the pressure of which can be applied to wheel brakes of the vehicle, further including a device for detecting the driver's wish for deceleration as well as valve assemblies inserted upstream of the wheel brakes and connecting the wheel brakes alternatively to the pressure source or the pressure fluid supply reservoir. In order to increase the operational or functional reliability of a system of this type, the present invention discloses the provision of means for detecting gases or air disposed in the system.
摘要:
The present invention discloses an electronically controllable brake actuating system for automotive vehicles, including an unpressurized pressure fluid supply reservoir, a pressure source actuatable by an electronic control unit, the pressure of which can be applied to wheel brakes of the vehicle, further including a device for detecting the driver's wish for deceleration as well as valve assemblies inserted upstream of the wheel brakes and connecting the wheel brakes alternatively to the pressure source or the pressure fluid supply reservoir. In order to increase the operational or functional reliability of a system of this type, the present invention discloses the provision of means for detecting gases or air disposed in the system.
摘要:
The present invention relates to a pressure sensor unit, in particular for a pressure control device, comprising a carrier housing for holding several pressure sensors, wherein the carrier housing accepts the pressure sensors as a modular assembly that can be preliminarily tested and forms an independent subassembly preferably arranged between a first and second housing of the pressure control device.
摘要:
In a piezoelectrically actuated fluid valve the bending transducer includes another bearing point at its second end remote from the immovable bearing and the valve closure member points to the valve seat in a defined partial span width between the two ends of the bending transducer.
摘要:
An electronically controllable brake actuating system for automotive vehicles includes a master brake cylinder operable by an actuating pedal and having at least one piston, at least one braking pressure generator actuatable by an electronic control unit, to which braking pressure generator wheel brakes of the vehicle are directly connected and which is connectable to the master brake cylinder by hydraulic connections closable by valve assemblies, at least one sensor device to identify the driver's wish for deceleration, and a simulator chamber which interacts with the master brake cylinder. The reliability of the system may be improved by providing a simulator chamber that is connected to a hydraulic chamber and which is bounded in the master brake cylinder by a second piston, by way of a closable connection.
摘要:
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.
摘要:
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.
摘要:
An overriding drive for an overriding steering system, wherein a steering angle inputted by the driver can be overridden by another angle by a control according to correcting variables and the transmission ratio can be modified, and which is characterized in that the overriding drive is locked electromechanically in dependence on further correcting variables representative of an operating state of the vehicle.
摘要:
A vehicle steering system for motor vehicles includes a steering handle, which is connected to steerable vehicle wheels in terms of effect in order to predefine a driving direction, as well as a hydraulic working cylinder including two cylinder chambers. Further, a hydraulic pressure source is provided, which applies hydraulic pressure to a steering valve designed as a slide valve. The steering valve controls the magnitude of the hydraulic pressure that is conveyed to the cylinder chambers of the working cylinder, and a differential pressure determines the effective direction and the magnitude of the steering aid. The steering valve is a slide valve and includes a control assembly comprising a control sleeve and a control slide. The control sleeve has at least one control window, and the differential pressure in a non-linear relationship depends on the free cross-sectional surface of the control window, which is variable due to displacement of the control slide. The edge of the control window is so configured that the free cross-sectional surface of the control window changes in such a fashion that the magnitude of the differential pressure depends substantially linearly on the displacement of the control slide.
摘要:
Disclosed is a motorcycle brake system in which, during brake slip control, the pressure buildup in the front-wheel brake circuit (2) is determined depending on the switching position of the inlet and outlet valves (21, 22) by the brake fluid volume which is available in the master brake cylinder (7) and can be displaced exclusively manually into the front-wheel brake circuit (2); and the brake fluid volume provided in the master brake cylinder (7) is monitored in order to prevent exhaustion of the brake fluid volume.