A dual clutch transmission for a motor vehicle, with a first sub-transmission, with a second sub-transmission, with a first clutch associated with the first sub-transmission, and with a second clutch associated with the second sub-transmission. The dual clutch transmission is designed to be shifted into a parking lock state, in which two gears of one of the sub-transmissions are simultaneously engaged, and in the lock state, the two gears of the one first sub-transmission are simultaneously engaged. A first gear wheel of a first of the gears, which is designed as loose wheel and rotatably arranged on a first shaft of the dual clutch transmission, is connected in a torque-proof manner to the first shaft, by a first switching element.

A control system and method for a vehicle is provided. The system comprises a poly-shifter, an RF Hub, a transmission control module (TCM) and a controller. The poly-shifter is configured to be moved between operating states including Park and Non-Park positions. The RF Hub supports operational features of the vehicle. The TCM determines a lock state of a parking pawl in a transmission of the vehicle and communicates the lock state to the RF Hub. The controller is configured to determine whether a driver has exited the vehicle with the poly-shifter in a Non-Park position. The controller is further configured to power down the vehicle based on the lock state of the parking pawl being in a Park position and the driver exiting the vehicle with the poly-shifter in the Non-Park position.

A control device for automatic transmission of the present invention includes a transmission mechanism and a park lock device. The park lock device has a rod member and a lock mechanism. The lock mechanism restricts movement of the rod member when being in a locked state. If a CPU reset (reset of a CPU constituting an ATCU) occurs, the control device maintains the locked state of the lock mechanism after a return from the CPU reset.

A system for parking control of a vehicle in which a transmission parking configuration is omitted is provided. The system includes a shift by wire device that requests a parking control of the vehicle when a parking stage is input by an operation of a driver. An electronic parking brake operates a brake installed on a drive wheel via a relay which is connected to be in a parking brake state when the electronic parking brake receives the parking control request from the shift by wire device. The shift by wire device switches the relay to directly operate the brake to be in the parking brake state when the shift by wire device receives a failure event, which indicates that a normal operation of the electronic parking brake is impossible, from the electronic parking brake.

A method for operating a dual-clutch transmission having a first partial transmission, a second partial transmission, a first clutch assigned to the first partial transmission, and a second clutch assigned to the second partial transmission, in which the dual-clutch transmission is shifted into a parking lock state. The dual-clutch transmission is shifted into the parking lock state by the following steps: while a first gear of one of the partial transmissions is engaged: carrying out an engagement process provided for engaging a second gear of the one partial transmission; determining that the second gear is not engaged despite the engagement process being carried out; selecting a third gear of the dual-clutch transmission different from the first gear and from the second gear; and engaging the selected third gear such that in the park lock condition, the first gear and the third gear are at least temporarily engaged simultaneously.

A method for operating a dual clutch transmission of a motor vehicle having a first partial transmission, a second partial transmission, and a transmission output shaft common to the partial transmissions and drivable both by the first partial transmission and by the second partial transmission, in which the dual clutch transmission is in a parking lock state in which two gears of one of the partial transmissions are engaged simultaneously. The following steps are carried out to exit the parking lock state: Introducing a torque caused by a drive element of the motor vehicle via the transmission output shaft common to the one partial transmissions into the one and/or other partial transmission while the gears of the partial transmission are engaged; and disengaging at least one of the gears of the one partial transmission engaged simultaneously in step a).

Disclosed herein is a method of controlling a system for neutral range parking of a vehicle. The power of the vehicle is turned off based on operation of a start button when a shift range of a vehicle transmission is a P-range. It is determined whether a brake pedal is operated after the power is turned off and, when the brake pedal is determined to be operated after the power is turned off, an automatic lever solenoid valve of the transmission is operated to allow the transmission to shift from the P-range to another shift range by releasing engagement between the automatic lever solenoid valve and an engaging lever.

An exemplary method to disengage a brake transmission shift interlock feature of a vehicle includes the steps of receiving vehicle characteristic data from at least one vehicle sensor, determining a current road grade, determining a vehicle brake pressure target, receiving vehicle brake pressure data from at least one vehicle sensor, and generating a control signal to disengage the brake transmission shift interlock feature if the vehicle brake pressure reaches the vehicle brake pressure target.

An exemplary method to disengage a brake transmission shift interlock feature of a vehicle includes the steps of receiving vehicle characteristic data from at least one vehicle sensor, determining a current road grade, determining a vehicle brake pressure target, receiving vehicle brake pressure data from at least one vehicle sensor, and generating a control signal to disengage the brake transmission shift interlock feature if the vehicle brake pressure reaches the vehicle brake pressure target.

A shifter assembly having a housing supporting a detent locking wheel with a biasing return spring. A plunger housing subassembly is rotatably supported within the locking wheel and operating in response to an external input to be rotated between each of Park, Reverse, Neutral and Drive gear shift positions. An electric motor is supported by the housing and is linked to a lock lever, an extending portion of the lock lever engaging the locking wheel. A PCB board is integrated into the housing and is communicable with at least one external sensor associated with a driver exit condition. Upon a triggering of the exit condition with the shifter in other than a Park position, the motor being energized to retract the lock lever to permit the return spring to rotate the wheel to the Park position.