A vehicle control system for improving vibration suppressing performance and acceleration response is provided. A controller is configured to set the torque transmitting capacity of an engagement device to a first torque transmitting capacity that is smaller than a value required to transmit a peak value of a second drive torque applied to an output shaft of a transmission having the engagement device but greater than a value required to transmit an estimated first drive torque generated by an engine, when the second drive torque is amplified by pulsation of the first drive torque.

A vehicle control system for improving vibration suppressing performance and acceleration response is provided. A controller is configured to set the torque transmitting capacity of an engagement device to a first torque transmitting capacity that is smaller than a value required to transmit a peak value of a second drive torque applied to an output shaft of a transmission having the engagement device but greater than a value required to transmit an estimated first drive torque generated by an engine, when the second drive torque is amplified by pulsation of the first drive torque.

According to a method for operating a clutch transmission, especially a dual clutch transmission, which includes a hydraulic circuit having at least one pump for delivering hydraulic medium and at least one pressure accumulator for accommodating and making available a hydraulic medium under pressure, the pump associated with an electric motor is operated depending on a charge requirement of the pressure accumulator. To determine the charge requirement, the pump is driven by the electric motor, and the current consumed by the electric motor in the process is detected to determine the charge requirement.

A multiple-piece backing plate and a friction clutch assembly for an automotive transmission are provided. The multiple-piece backing plate includes a cap part and a main body backing plate. The cap part is formed of a first material. The main body backing plate is attached to the cap part, and the main body backing plate is formed of a second material, where the second material is different than the first material. The friction clutch assembly includes first clutch plates coupled to a first transmission member and second clutch plates interleaved with the first clutch plates and coupled to a second transmission member. The friction clutch assembly is configured to be moved between an engaged position and a disengaged position. In the engaged position, the first and second transmission members are coupled together by compressing the first and second clutch plates directly against the cap part.

A multiple-piece backing plate and a friction clutch assembly for an automotive transmission are provided. The multiple-piece backing plate includes a cap part and a main body backing plate. The cap part is formed of a first material. The main body backing plate is attached to the cap part, and the main body backing plate is formed of a second material, where the second material is different than the first material. The friction clutch assembly includes first clutch plates coupled to a first transmission member and second clutch plates interleaved with the first clutch plates and coupled to a second transmission member. The friction clutch assembly is configured to be moved between an engaged position and a disengaged position. In the engaged position, the first and second transmission members are coupled together by compressing the first and second clutch plates directly against the cap part.

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.

A method for learning a touch point of a clutch in a Dual Clutch Transmission (DCT) vehicle includes a synchronization determination step, a drive shaft slip inducement step in which the controller induces a clutch of the drive shaft to slip, a non-drive shaft torque application step in which the controller applies torque to a clutch of the non-drive shaft, and a touch point learning step in which, while the speed of the non-drive input shaft follows the engine speed in the non-drive shaft torque application step, the controller searches for a certain point at which the speed of the non-drive input shaft changes and differs from the speed of the drive input shaft, and learns the point as the touch point of the clutch of the non-drive shaft.

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 wedge clutch, including: a first hub; a second hub; an outer ring located radially outward of the first and second hubs; a first wedge plate radially disposed between the first hub and the outer ring; a second wedge plate radially disposed between the second hub and the outer ring; and a displacement assembly arranged to: for a connect mode, axially displace the first and second hubs with respect to each other to non-rotatably connect the first and second hubs to the outer ring; and for a disconnect mode, axially displace the first and second hubs with respect to each other to enable rotation between the outer ring and the first and second hubs.