A clutch engagement booster system is an apparatus used to support and improve clutch engagement on motor vehicles, both as a modification to existing clutch assemblies or as a standalone installation in various embodiments. The clutch engagement booster system utilizes a casing and pressure housing supporting a diaphragm, an expansion chamber, an engagement member, and at least one clutch element. The expansion chamber is formed between the diaphragm and the pressure housing in fluid communication with at least one pressure source through the at least one regulator device. The at least one clutch element is positioned within the casing, opposite the diaphragm across the engagement member. As the expansion chamber is pressurized the diaphragm deforms towards the engagement member, thereby forcing the at least one clutch element into engagement to transfer power through a host transmission.

A fluidic control system (1) for controlling a vehicle, which includes a controller (2) and a closed fluidic circuit. The circuit includes a pump (3) for pressurizing fluid in the circuit, valve means (40, 50, 60), an actuator (4, 5, 6) and a precharge accumulator (7). The valve means (40, 50, 60) is fluidly connected to the inlet and outlet of the pump (3) and the actuator (4, 6) is fluidly connected to the valve means (40, 50, 60) for selectively receiving pressurized fluid therefrom. The precharge accumulator (7) includes a movable member (73, FIG. 2) that describes a variable volume (71) fluidly connected to the circuit between the valve means (40, 50, 60) and the inlet of the pump (3). The system (1) also includes a sensor (70) for determining the position of the movable member (73) for estimating the quantity of fluid and/or detecting an abnormal pressure variation within the circuit.

A hydraulic transformer clutch employs radial hydraulic piston assemblies with integrated electrohydraulic actuation. The hydraulic transformer clutch includes: an output shaft, an output disc affixed to the output shaft for rotation therewith, an input shaft, a rotatable housing affixed to one of the input shaft or the output shaft for rotation therewith, a plurality of hydraulic cylinders, and a plurality of working pistons. The hydraulic cylinders are operatively connected to the rotatable housing, and are spaced about the rotatable housing. Each working piston is slidably mounted within a corresponding hydraulic cylinder of the plurality of hydraulic cylinders, and is positioned to be selectively pushed, when actuated, to create a rigid connection between the input shaft and the output shaft. One or more actuator pistons are pushed by an electromagnet and create pressure that is distributed on working piston surfaces and generates active torque.

A fluidic control system (1) for controlling a vehicle, which includes a controller (2) and a closed fluidic circuit. The circuit includes a pump (3) for pressurizing fluid in the circuit, valve means (40, 50, 60), an actuator (4, 5, 6) and a precharge accumulator (7). The valve means (40, 50, 60) is fluidly connected to the inlet and outlet of the pump (3) and the actuator (4, 6) is fluidly connected to the valve means (40, 50, 60) for selectively receiving pressurized fluid therefrom. The precharge accumulator (7) includes a movable member (73, FIG. 2) that describes a variable volume (71) fluidly connected to the circuit between the valve means (40, 50, 60) and the inlet of the pump (3). The system (1) also includes a sensor (70) for determining the position of the movable member (73) for estimating the quantity of fluid and/or detecting an abnormal pressure variation within the circuit.

An automobile or other wheeled vehicle includes various hydraulic components, including a hydraulic gearbox, transmission, clutch, and brake energy recovery system. Such hydraulic components supplement or replace traditional mechanical components of the automobile or other wheeled vehicle to improve the overall operational efficiency thereof.

The invention relates to a hydraulic circuit (1) of a torque transmission device, wherein at least two, in particular closed in a non-actuated state (normally closed), clutches (2, 3) of the torque transmission device can be element (12, 13) of the hydraulic circuit, wherein in a clutch opening state, every clutch valve element (12, 13) is connected to a high-pressure line (30) that is applied with the pressure of a high-pressure hydraulic accumulator (31) and/or generator (32), by means of a pressurisation line (22, 23) for the deflection of the clutch (2, 3), and in a closing state, same is connected to a low-pressure tank (40) by means of a tank line (42, 43, 44, 45, 46, 47, 48, 49) for releasing a deflection pressure, and wherein the tank lines (42, 43, 44, 45, 46, 47, 48, 49) of the clutch valve elements (12, 33) are guided to a safety valve (50), in particular by means of a common collection tank line (41), which safety valve can be switched in such a way that the tank lines (42, 43, 44, 45, 46, 47, 48, 49) can be applied with the pressure of the high-pressure line (30).

A fluid control device includes: a valve body accommodating chamber having an inner space divided into a first chamber and a second chamber by a first valve body; a receiving port, which opens to the first chamber and through which a fluid from an accumulator is received in the first chamber, and a discharge port, which opens to the first chamber and through which the fluid is discharged from the first chamber; a guide path guiding the fluid from the accumulator to the second chamber such that the first valve body moves to a valve-closed position to close the discharge port; a second valve body switchable between a state of maintaining pressure of the fluid guided to the second chamber and a state of releasing the pressure; and a bias member biasing the first valve body to the valve-closed position.

A power transmitting component can include a friction clutch, a ram, a pump, a fluid storage device and a valve. The ram can have a piston chamber and a piston movable therein between a first and second position to engage the friction clutch. A first inlet/outlet of the pump can be fluidly coupled to a reservoir. The fluid storage device can hold pressurized hydraulic fluid. The valve can be fluidly coupled with the piston chamber, a second inlet/outlet of the pump, and the fluid storage device. When in a first mode, the valve can permit fluid communication between the pump and the fluid storage device, inhibit fluid communication between the piston chamber and the pump, and inhibit fluid communication between the piston chamber and the fluid storage device. When in a second mode, the valve can permit fluid communication between the pump, the fluid storage device, and the piston chamber.

A hydraulic system includes a normally open-type hydraulic clutch which connects or disconnects a power transmission line between an engine and a wheel, an actuator which supplies a hydraulic pressure to the hydraulic clutch, an oil flow path which connects the actuator to the hydraulic clutch, a valve member which is provided on the oil flow path and which enables to switch between an open state where the oil flow path communicates and a closed state where the oil flow path closes, a hydraulic pressure sensor which is provided on the oil flow path, and a bypass flow path which bypasses the valve member. A one-way valve, which permits a supply of a hydraulic pressure from an actuator side to a hydraulic clutch side and which shuts off a supply of a hydraulic pressure from the hydraulic clutch side to the actuator side, is provided on the bypass flow path.

A power transmitting component can include a friction clutch, a ram, a pump, a fluid storage device and a valve. The ram can have a piston chamber and a piston movable therein between a first and second position to engage the friction clutch. A first inlet/outlet of the pump can be fluidly coupled to a reservoir. The fluid storage device can hold pressurized hydraulic fluid. The valve can be fluidly coupled with the piston chamber, a second inlet/outlet of the pump, and the fluid storage device. When in a first mode, the valve can permit fluid communication between the pump and the fluid storage device, inhibit fluid communication between the piston chamber and the pump, and inhibit fluid communication between the piston chamber and the fluid storage device. When in a second mode, the valve can permit fluid communication between the pump, the fluid storage device, and the piston chamber.