Vehicle park-lock control method and park-lock control device
AssigneeNissan Motor Co., Ltd.
InventorsKenji Koshiba, Hidehiko Sugita, Yasuhiro Konishi
Life of this patent
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Abstract
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.
Claims5
A vehicle park lock control method for a vehicle with a range selector provided for selecting 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 the vehicle, wherein the range selector includes a range selector lever arranged to be mechanically returned to a home position, wherein a park lock mechanism is activated when the P-range position is selected by the range selector, the vehicle park lock control method comprising:
- providing the range selector for an operator to selectively shift to cause the park lock mechanism to be activated in response to a vehicle system shutdown command when in the N-range position;
- providing an N-range keeping mode configured to, in response to activation thereof, prevent the park lock mechanism from being activated in response to the vehicle system shutdown command when in the N-range position, wherein the N-range keeping mode is activatable by a predetermined N-range keeping operation of the operator;
- in response to the vehicle system shutdown command when in the N-range position without the N-range keeping mode activated, displaying guidance on the N-range keeping operation on a display of the vehicle;
- and
- implementing the N-range keeping operation by shifting the range selector lever by a predetermined pattern from the home position to (i) a range position other than the N-range position and (ii) the N-range position.
A vehicle park lock control device comprising:
- a range selector provided 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;
- and
- a park lock mechanism structured to lock at least one road wheel;
- wherein the range selector includes a range selector lever arranged to be mechanically returned to a home position;
- wherein the park lock mechanism is activated when in the P-range position;
- wherein an operator is allowed to select whether or not to cause the park lock mechanism to be activated in response to a vehicle system shutdown command when in the N-range position;
- wherein an N-range keeping mode is activated by a predetermined N-range keeping operation of the operator;
- wherein the vehicle park lock control device comprises a controller configured to, in response to the vehicle system shutdown command when in the N-range position without the N-range keeping mode activated, cause guidance on the N-range keeping operation to be displayed on a display of the vehicle;
- and
- wherein the N-range keeping operation is implemented by shifting the range selector lever by a predetermined pattern from the home position to (i) a range position other than the N-range position and (ii) the N-range position.
Dependencies are inferred from the claim text.