Control device for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorShotaro Kawamoto
Life of this patent
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Abstract
A shift position is determined based on signals of a plurality of electrical contacts that is provided with a lock mechanism configured to be able to switch between a P lock that regulates switching of the shift operation unit from the P position and an N lock that regulates switching of the shift operation unit from the N position and to release the set P lock or N lock by operating the brake operation unit, and outputs a signal corresponding to the position of the shift operation unit, and when no on signal is output from all of the electrical contacts, a shift position is determined based on signals of a first switch in which the shift operation unit is turned on in the P position and the N position, and a second switch in which the shift operation unit is turned on in the P position.
Claims4
A control device of a vehicle that includes
- a shift operation unit for selecting a plurality of shift positions including a parking position, a neutral position, and a drive position,
- a plurality of electrical contacts including a parking contact that is turned on when the shift operation unit is in the parking position, a neutral contact that is turned on when the shift operation unit is in the neutral position, and a drive contact that is turned on when the shift operation unit is in the drive position,
- a lock mechanism that is configured to be switchable between a parking position lock that regulates or restricts switching of the shift operation unit from the parking position to another shift position, and a neutral position lock that regulates or restricts switching of the shift operation unit from the neutral position to another shift position, and
- a brake operation unit that is operated by a driver to apply a braking force to wheels, in which the lock mechanism is configured to disengage the parking position lock or the neutral position lock that is set, by operating the brake operation unit, the control device comprising:
- a first switch that is turned on when the shift operation unit is at the parking position or the neutral position;
- a second switch that is only turned on when the shift operation unit is in the parking position;
- and
- a controller that controls the locking mechanism in accordance with the shift position, the controller including
- a normal determination unit that, when an on signal is output from any one of the electrical contacts, determines the shift position of the shift operation unit based on the on signal of the electrical contact, and
- a backup determination unit that, when an on signal is not output from any of the electrical contacts, determines the shift position of the shift operation unit based on signals of the first switch and the second switch.
Dependencies are inferred from the claim text.