A pneumatic and manual clutch of a power winch provides an option of controlling the clutch by a manual or pneumatic method. The pneumatic control method just needs to connect a pump connector of an air pump to a pneumatic connector of the clutch properly to start or stop the air pump even when a user is standing at a position far from the power winch and the clutch can be turned on and off by starting or stopping the air pump. Either a cable or wireless remote control can be used to start or stop the air pump, to provide a very convenient operation.

A two-speed transmission having two clutches includes an electric motor, a middle shaft, a first clutch, a second clutch, a first gear assembly and a second gear assembly. The electric motor includes a spindle. The first clutch and the second clutch are furnished on the middle shaft coaxially. The first gear assembly and the second gear assembly are coupled to the first clutch and the second clutch through a first shaft portion and a second shaft portion of the middle shaft to generate a first gear ratio and a second gear ratio, respectively. When the first clutch is activated to connect with the first shaft portion, the second clutch separates from the second shaft portion, so that the electric motor outputs a first torque corresponding to the first gear ratio through the first gear assembly. Similarly, the electric motor outputs a second torque corresponding to the second gear ratio.

A friction clutch assembly for an automatic transmission is provided. The friction clutch assembly is configured to move between an applied position and a released or disengaged position. A plurality of clutch plates may include friction plates and interleaved reaction plates, plus an apply plate and a backing plate. A separator feature is disposed adjacent to at least one of the reaction plates, the friction plates, the apply plate, and the backing plate. At least one of the reaction plates, the friction plates, the apply plate, and the backing plate defines a passage configured to allow fluid to flow through the friction clutch assembly and around the separator feature.

A friction clutch assembly for an automatic transmission is provided. The friction clutch assembly is configured to move between an applied position and a released or disengaged position. A plurality of clutch plates may include friction plates and interleaved reaction plates, plus an apply plate and a backing plate. A separator feature is disposed adjacent to at least one of the reaction plates, the friction plates, the apply plate, and the backing plate. At least one of the reaction plates, the friction plates, the apply plate, and the backing plate defines a passage configured to allow fluid to flow through the friction clutch assembly and around the separator feature.

The disclosure discloses a control unit for the electrohydraulic actuation of motor vehicle assemblies, having a main housing and at least one valve unit which can be inserted into the main housing. The valve unit has a metal valve housing for receiving an electrically actuable valve, a plug housing which is fastened to the valve housing and is formed from a plastics material, and a connection contact which is received in the plug housing and can be electrically connected to the valve. A clamping contact for electrically connecting the connection contact of the valve unit to an actuating electronics system is connected to the main housing. The plug housing forms a dielectric resistance between the clamping contact and the valve housing. An installation space-saving and safe control unit is rendered possible owing to the fact that the plug housing forms a dielectric resistance between the clamping contact and the valve housing.

The disclosure discloses a control unit for the electrohydraulic actuation of motor vehicle assemblies, having a main housing and at least one valve unit which can be inserted into the main housing. The valve unit has a metal valve housing for receiving an electrically actuable valve, a plug housing which is fastened to the valve housing and is formed from a plastics material, and a connection contact which is received in the plug housing and can be electrically connected to the valve. A clamping contact for electrically connecting the connection contact of the valve unit to an actuating electronics system is connected to the main housing. The plug housing forms a dielectric resistance between the clamping contact and the valve housing. An installation space-saving and safe control unit is rendered possible owing to the fact that the plug housing forms a dielectric resistance between the clamping contact and the valve housing.

A backing plate configuration and a friction clutch assembly for an automotive transmission are provided. The backing plate configuration includes a main body having a reaction section connected to a perpendicularly disposed strength section. The thickness of the strength section may be less than or equal to the thickness of the reaction section. The friction clutch assembly includes interleaved first and second clutch plates. The main body (of the backing plate) is disposed adjacent to an end second clutch plate. The main body is piloted by and/or splined to the same transmission member as the end second clutch plate. In an engaged position, the end second clutch plate is compressed directly against and into contact with the main body. A method of forming the backing plate configuration is included, which includes stamping of the main body.

A backing plate configuration and a friction clutch assembly for an automotive transmission are provided. The backing plate configuration includes a main body having a reaction section connected to a perpendicularly disposed strength section. The thickness of the strength section may be less than or equal to the thickness of the reaction section. The friction clutch assembly includes interleaved first and second clutch plates. The main body (of the backing plate) is disposed adjacent to an end second clutch plate. The main body is piloted by and/or splined to the same transmission member as the end second clutch plate. In an engaged position, the end second clutch plate is compressed directly against and into contact with the main body. A method of forming the backing plate configuration is included, which includes stamping of the main body.

In an automotive automatic transmission, a force applying piston mounted on a servo pin is supported at both sides of the piston. A first end of the servo pin is conventionally supported in a servo pin bore. A second, extended end is supported in a specially configured support bore formed in the assembly cover. Excentric loading and excessive wear of the servo pin and servo pin bore, which can result in damage to the piston, is reduced or eliminated thereby.

A method of predicting the health of and controlling a hydraulic pressure actuated torque converter lock-up clutch includes determining rotational input and output speeds of the torque converter. The method also includes determining a magnitude of the hydraulic pressure. The method additionally includes determining a level of performance of the clutch across multiple torque converter operating modes using the determined input and output torque converter speeds and the determined magnitude of the hydraulic pressure. The method also includes calculating a numeric state of health (SOH) coefficient of the clutch that quantifies a relative severity of degradation of a plurality of clutch characteristics across the multiple torque converter operating modes. Furthermore, the method includes executing a control action relative to the clutch when the calculated numeric SOH coefficient for specified torque converter operating mode(s) is less than a calibrated SOH threshold.