Patent classifications
F16H2312/12
Shift range control device
A shift range control device switches a shift range by controlling driving of a motor. A learning unit learns, as a position correction value, a normal state time correction value calculated based on first and/or second reference angles when an output shaft signal is available when turning on of a start switch. The first reference angle is a motor angle when the output shaft signal changes in response to the rotation of the motor in a first direction. The second reference angle is the motor angle when the output shaft signal changes in response to the motor rotation in a second direction opposite to the first direction. A motor angle target value is set by using the normal state time correction value stored during a period from when all the output shaft signals are determined to be unavailable to when the start switch is turned off.
DUAL CLUTCH TRANSMISSION FOR A MOTOR VEHICLE, IN PARTICULAR FOR AN AUTOMOBILE, METHOD FOR OPERATING A DUAL CLUTCH TRANSMISSION OF THIS TYPE AND MOTOR VEHICLE
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.
METHOD FOR OPERATING A DUAL CLUTCH TRANSMISSION OF A MOTOR VEHICLE AND MOTOR VEHICLE
A method for operating a dual clutch transmission of a motor vehicle 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 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 clutch associated with the one partial transmission 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).
METHOD FOR OPERATING A DUAL CLUTCH TRANSMISSION OF A MOTOR VEHICLE AND MOTOR VEHICLE
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.
Apparatus and method for parking control of vehicle
Provided are an apparatus and a method for parking control of a vehicle and the method includes a step in which a control unit determines a driver's parking intention by receiving a brake signal, pressure of a master cylinder, and a position of a shift lever from a brake switch, a pressure detection unit, and a shift lever detection unit, respectively; a step in which the control unit determines a state of the vehicle by receiving an inclination, a wheel speed, and a vehicle speed from an inclination detection unit, a wheel speed detection unit, and a vehicle speed detection unit, respectively; a step in which the control unit determines a state of an electronic parking brake; and a step in which the control unit operates the electronic parking brake through an EPB driving unit.
VEHICLE PARK-LOCK CONTROL METHOD AND PARK-LOCK CONTROL DEVICE
A vehicle park lock control method is presented with range positions including a P-range position and an N-range position in each of which a driving force is prevented from being transmitted to a driving wheel of a vehicle. A park lock mechanism is activated when in the P-range position. An operator is allowed to select whether or not to cause the park lock mechanism to be activated in response to key-off operation when in the N-range position. In response to continuous shifting of a range selector to one or more specific ones of the range positions, the park lock mechanism is prevented from being activated in response to key-off operation when in the N-range position.
METHOD FOR OPERATING A DUAL CLUTCH TRANSMISSION OF A MOTOR VEHICLE AND MOTOR VEHICLE
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).
Parking system and method
A system and a method for simplifying payment of a vehicle parking fee for a user. The method includes detecting, by a sensor, that a vehicle is parked; determining a geographical vehicle position data of the parked vehicle; sending the parking request message to the vehicle parking management server from a communication device; determining, by the vehicle parking management server, at least a first vehicle parking fee service provider among plural of available vehicle parking fee service providers that is available for receiving payment of the vehicle parking fee where the vehicle is parked; displaying, via a user interface of the communication device, selection information associated with the a least first vehicle parking fee service provider available for receiving payment of the vehicle parking fee where the vehicle is parked.
System and method for preventing unwanted engine restarts while parking a vehicle
What is described is a system for controlling an engine of a vehicle. The system includes a gear shifter having a gear selection sensor configured to determine a selected gear position. The system also includes a proximity sensor configured to detect object data within a predetermined area of the vehicle. The system also includes a controller coupled to the gear shifter and the proximity sensor and configured to control the engine based on the selected gear position and the object data.
SHIFT-BY-WIRE CONTROL DEVICE
A shift-by-wire control device includes a first detector, a second detector, an auto parking control unit, and a malfunction determining unit. The first and second detectors respectively detect first and second vehicle states attributed to behaviors of a driver. The auto parking control unit executes an auto parking control irrespective of a state of the shift range selected by the shift lever, on conditions that detection results derived from the first and second detectors satisfy respective predetermined conditions. The malfunction determining unit determines that the first detector is malfunctioning, on a condition that the first detector fails to detect a change in the first vehicle state. The auto parking control unit refrains from executing the auto parking control, on a condition that the first detector is determined by the malfunction determining unit as malfunctioning.