摘要:
A hydraulic brake system with anti-lock control and traction slip control having a multiple-circuit master cylinder, inlet valves and outlet valves, a pressure fluid supply reservoir, an auxiliary-pressure supply system, an electronic control unit, and pedal-travel sensors and/or switches. The outlet valves which connect the wheel brakes of the non-driven wheels with the pressure fluid supply reservoir are driven temporarily or pulsewise in the traction slip control mode in order to safeguard that even in the event of a so-called braking intervention during the traction slip control mode, the travel of the brake pedal can be recognized by the travel switches and travel sensors which permits detection of the transition from the traction slip control mode to the braking mode.
摘要:
A load adjustment device is provided with a throttle valve (9) which determines the output of an internal combustion engine and is fastened, fixed for rotation, to a throttle-valve shaft (32), which is mounted in a throttle-valve housing (30). In idle operation, the throttle-valve shaft (32) is adjusted by an electric motor (14) and a four-link gearing (16) connected behind it. This includes a pinion (14) which is arranged on an output shaft of the electric motor (14) and meshes with a gear segment (50) which is connected for drive via a second link (53) to a rotor (54) which drives the throttle-valve shaft (32). Due to the advantageous arrangement of the four-link gearing (16), a very large transmission ratio can be achieved between the output shaft (40) of the electric motor 14 and the throttle-valve shaft (32), so that a very small, cost-efficient electric motor is sufficient.
摘要:
To warn the driver of an automotive vehicle in the event of failure of a component of the actuating apparatus in a brake pressure control device with two control valves which are acted upon by an actuating varied by an actuating variable which is common for both control valves, a separate actuating apparatus is provided for each control valve. The differential pressure between the pressure fluid outlets is permanently monitored.
摘要:
A load-adjustment device having a control element which can act on a throttle valve (e.g.) of an internal combustion engine and which is connected to a driver which is coupled to an accelerator pedal and, in addition, can be moved by means of an electric setting drive, having a desired-value-detection element associated with the driver and an actual-value detection element which cooperates with the desired-value detection element and acts on the electric setting drive, the electric setting drive being controllable as a function of the detected values of an electronic control device. The driver, the control element, the desired-value detection element, the actual-value detection element and the setting drive are arranged in the throttle-valve housing, the driver and the control element being coupled by means of a coupling spring and the control element being urged in the direction towards a stop of the driver.
摘要:
A braking pressure regulating device, in particular an anti-lock control device for hydraulic brake systems of automotive vehicles, comprising a master cylinder and a pressure modulator for the variation of the hydraulic pressure in the wheel cylinders during the braking pressure control mode. The device is equipped with a motor-driven pump (8) for generating a hydraulic pressure and with an electronic control unit (5) for controlling the valves of the pressure modulator (2). During the braking pressure control mode, the working chambers (10, 15) of the master cylinder (16) are exposed to pump pressure. Caused by the pump pressure in the working chamber (10), the push rod piston (11) and thus the brake pedal (1) disadvantageously are returned into their basic position in prior-art devices. The present arrangement provides that the switching positions of the regulating valve incorporated in the push rod piston are shifted into the cylinder during the braking pressure control mode. Therefore the brake pedal is not fully reset during the control mode. The operating comfort of the brake pedal is thereby augmented.
摘要:
A pressure control unit comprises a housing and a regulating device connected between an inlet and an outlet thereof and actuated by a control force. To accomplish low-priced manufacture, great reliability of function and valve-tightness, it is arranged so that the control piston is of bipartite design and includes an integrated valve seat.
摘要:
The valve member (4) of a bypass valve (2) of a device for regulating the idling of an internal combustion engine is provided, for pressure equalization, with a back-pressure chamber (8) which is in communication via a pressure-equalization connection (9) with the pressure-inlet side of the bypass valve (2). This pressure-equalization connection (9) debouches as close as possible to the narrowest point of the gap between the valve member (4) and the valve seat (7) in the housing (1) of the bypass valve (2).
摘要:
Disclosed is a valved drive for a gas exchange valve (4) in a power engine, with a magnetic rotor (12) which, along with a rotor section positioned at a distance from the gas exchange valve (4), extends in a longitudinally movable manner inside a stator (1) provided with a current coil (18), so that one end of the rotor (12) projecting out from the stator (1) activates the gas exchange valve (11) upon the stimulation of the current coil (18). The rotor (12) is, in the area of the rotor section, preferably designed in accordance with the type of a flat-body slide valve as a vertiaclly moved rotor plate (11), in which several level individual magnetic parts (21) are aligned.
摘要:
A peripheral, annular groove is incorporated into a throttle valve connector in one step. A first die and a second die are then inserted into the throttle valve connector and a first plastic material is introduced into a first cylindrical cavity formed thereby in a molten state and hardened, resulting in a plastic insert. The first die and the second die are subsequently removed from the throttle valve connector and a third die and a fourth die are inserted into the throttle valve connector. A second cavity is formed therebetween and filled with a second plastic material, whereby a throttle valve is formed and is fixed during the cooling process by shrinkage on the throttle valve shaft.
摘要:
The invention relates to a valve drive for a gas exchange valve (4) in a power engine or a processing engine, with a magnetic rotor (12) which, along with a rotor section positioned at a distance from the gas exchange valve (4), extends in a longitudinally movable manner inside a stator (1) provided with a current coil (18), so that one end of the rotor (12) projecting out from the stator (1) activates the gas exchange valve (11) upon the stimulation of the current coil (18). The rotor (12) is, in the area of the rotor section, preferably designed in accordance with the type of a flat-body slide valve as a vertically moved rotor plate (11), in which several level individual magnetic parts (21) are aligned.