摘要:
A brake system for a vehicle includes: a main brake cylinder with a floating piston able to be shifted at least partially into the main brake cylinder, and a brake medium storage device into which a specified storage volume of a brake medium is able to be transferred without counterpressure, the brake medium storage device being hydraulically connected via an electrically controllable first valve to the main brake cylinder in such a way that, in response to a shifting of the floating piston partially into the main brake cylinder by a shift travel that is below a shift travel limit corresponding to the storage volume, a brake medium volume less than the specified storage volume is transferred without counterpressure from the main brake cylinder into the brake medium storage device.
摘要:
A hydraulic vehicle brake system, preferably a slip-controlled hydraulic vehicle brake system, includes two brake circuits to which wheel brakes of front wheels are attached. The brake system further includes an additional brake circuit, which is not attached to the main brake cylinder, but is provided with a hydraulic pump for power braking. Wheel brakes of vehicle wheels are attached to the additional brake circuit and are configured to be driven by an electric motor. The electric motor is operated as a generator during a braking operation to compensate for the braking moment generated in the additional brake circuit.
摘要:
A vehicle brake system and method for operating same, having a master brake cylinder, a brake medium reservoir, and a first brake circuit, connected via a reservoir line to the brake reservoir, having at least one first wheel brake cylinder, a first wheel inlet valve associated with the first brake cylinder, a first pump, by which a first brake medium volume is pumpable from the reservoir line through the open first wheel inlet valve into the first brake cylinder, a continuously adjustable first wheel outlet valve, by which a first brake medium displacement from the first cylinder into the brake reservoir is controllable, and a connecting line having a spring-loaded non-return valve, via which a delivery side of the first pump is connected to the brake reservoir, a brake medium displacement from the brake reservoir to the delivery side of the first pump being prevented by the spring-loaded non-return valve.
摘要:
A method for avoiding error messages due to maintenance work on a vehicle, which are generated by a monitoring unit if one or multiple operating parameters of a monitored vehicle system are outside of a predefined, admissible value range. According The general driving operation is monitored with the aid of a vehicle's own sensor system with respect to a maintenance state and, if a maintenance state is established, the admissible value range be automatically extended or at least one operating parameter is ignored during monitoring.
摘要:
A fastener driving tool arranged to drive fasteners into a workpiece includes at least one electric motor having a central stator and an external rotor arranged to rotate around the stator. The rotor may be in the form of a flywheel. The tool includes an energy transfer member such as a driver arranged to transfer kinetic energy from the rotor to a fastener held in the tool, thereby to drive the fastener from the tool into a workpiece. The electric motor may be a brushless motor. The tool may include two such motors, arranged such that both of their rotors propel the driver simultaneously.
摘要:
The invention provides for a fully electrically rechargeable metal-air battery systems and methods of achieving such systems. A rechargeable metal air battery cell may comprise a metal electrode an air electrode, and an aqueous electrolyte separating the metal electrode and the air electrode. In some embodiments, the metal electrode may directly contact the electrolyte and no separator or porous membrane need be provided between the air electrode and the electrolyte. Rechargeable metal air battery cells may be electrically connected to one another through a centrode connection between a metal electrode of a first battery cell and an air electrode of a second battery cell. Air tunnels may be provided between individual metal air battery cells. In some embodiments, an electrolyte flow management system may be provided.
摘要:
A method and a device for operating a motor vehicle, in which during driving mode the frictional connection between the vehicle engine and at least one drive axle is interrupted, and the vehicle engine is shut down, wherein the frictional connection between the vehicle engine and the at least one drive axle is restored when the driver operates an operating element, the vehicle engine remaining in the off state.
摘要:
A brake system for a vehicle is described, having a main brake cylinder which is designed to detect an actuation of a brake input element and to provide a pressure signal corresponding to the actuation of the brake input element, and a first brake circuit having a first wheel brake cylinder which is configured to exert a force on a first wheel corresponding to the pressure signal, having a first switching valve which is situated between the main brake cylinder and the first wheel brake cylinder and which is designed as an isolating valve, having a first pump and a storage chamber, the storage chamber in a neutral state having a storage volume on a side facing the first pump, and having a first wheel outlet valve which is associated with the first wheel and which is configured to control a flow of braking medium between the first wheel brake cylinder and the storage chamber. A method for controlling a corresponding brake system is also described.
摘要:
A fastener driving tool arranged to drive fasteners into a workpiece includes a support, a pair of sub-assemblies movably mounted on the support, each sub-assembly comprising a motor and an associated flywheel, and a nose part retractable relative to the support. The tool is arranged such that, in use, when the nose part is retracted, its movement relative to the support mechanically forces the sub-assemblies toward each other. The forcing of the sub-assemblies toward each other by the retraction of the nose part may move the sub-assemblies from an inoperative position to an operative position.
摘要:
Described herein is technology for, among other things, provisioning access to shared resources. It involves various techniques for creating accounts for recipients of communications with shared resources. Further, the resources may available by an easy to find permanent location (e.g., URL). Such a provisioning process facilitates the growth of the network as recipients are given fully featured accounts. Therefore, the technology avoids the sign up process that users would otherwise have to go through in order to access the shared resource.