Motor Vehicle And Control Method Of The Same
First Claim
1. A motor vehicle, comprising:
- a motor that outputs driving force to drive said motor vehicle;
a locking structure that utilizes gear engagement to lock an axle of said motor vehicle in a non-rotatable state;
an adjusted driving force setting module that sets an adjusted driving force, which is smaller than a vehicle weight force component or a force component of a vehicle weight acting in a longitudinal direction of said motor vehicle based on a road surface gradient and is applied in a direction of canceling the vehicle weight force component; and
a control module that, when a driver'"'"'s depression amount of a brake pedal becomes less than a preset level to move said motor vehicle in the acting direction of the vehicle weight force component after a gearshift operation of a gearshift lever to a parking position, controls the motor to output the adjusted driving force and controls the locking structure to lock the axle.
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Accused Products
Abstract
In response to a brake OFF operation (step S110) after a gearshift operation of a gearshift lever to a parking position, a motor is controlled to output a torque corresponding to an adjusted driving force F*, which is applied in a direction of canceling a force component of a vehicle weight M acting in a longitudinal direction of a motor vehicle based on a measured road surface gradient θ (steps S120 to S180). Such control reduces the force applied in the longitudinal direction of the vehicle and decreases the moving speed of the vehicle. The decreased moving speed of the vehicle enables moderate engagement of gears in a parking lock mechanism to decrease the potential shock of gear engagement and reduces the driver'"'"'s feeling of idle running.
17 Citations
15 Claims
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1. A motor vehicle, comprising:
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a motor that outputs driving force to drive said motor vehicle;
a locking structure that utilizes gear engagement to lock an axle of said motor vehicle in a non-rotatable state;
an adjusted driving force setting module that sets an adjusted driving force, which is smaller than a vehicle weight force component or a force component of a vehicle weight acting in a longitudinal direction of said motor vehicle based on a road surface gradient and is applied in a direction of canceling the vehicle weight force component; and
a control module that, when a driver'"'"'s depression amount of a brake pedal becomes less than a preset level to move said motor vehicle in the acting direction of the vehicle weight force component after a gearshift operation of a gearshift lever to a parking position, controls the motor to output the adjusted driving force and controls the locking structure to lock the axle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A motor vehicle, comprising:
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multiple motors that output driving force to an identical axle or to different axles to drive said motor vehicle;
a locking structure that utilizes gear engagement to lock an axle of said motor vehicle in a non-rotatable state;
an adjusted driving force setting module that sets an adjusted driving force, which is smaller than a vehicle weight force component or a force component of a vehicle weight acting in a longitudinal direction of said motor vehicle based on a road surface gradient and is applied in a direction of canceling the vehicle weight force component; and
a control module that, when a driver'"'"'s depression amount of a brake pedal becomes less than a preset level to move said motor vehicle in the acting direction of the vehicle weight force component after a gearshift operation of a gearshift lever to a parking position, controls the multiple motors to ensure output of the adjusted driving force from at least one of the multiple motors and controls the locking structure to lock the axle.
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10. A control method of a motor vehicle equipped with a motor that outputs driving force to drive said motor vehicle and a locking structure that utilizes gear engagement to lock an axle of said motor vehicle in a non-rotatable state,
said control method comprising the steps of: -
(a) setting an adjusted driving force, which is smaller than a vehicle weight force component or a force component of a vehicle weight acting in a longitudinal direction of said motor vehicle based on a road surface gradient and is applied in a direction of canceling the vehicle weight force component; and
(b) when a driver'"'"'s depression amount of a brake pedal becomes less than a preset level to move said motor vehicle in the acting direction of the vehicle weight force component after a gearshift operation of a gearshift lever to a parking position, controlling the motor to output the adjusted driving force and controlling the locking structure to lock the axle. - View Dependent Claims (11, 12, 13, 14)
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15. A control method of a motor vehicle equipped with multiple motors that output driving force to an identical axle or to different axles to drive said motor vehicle and a locking structure that utilizes gear engagement to lock an axle of said motor vehicle in a non-rotatable state,
said control method comprising the steps of: -
(a) setting an adjusted driving force, which is smaller than a vehicle weight force component or a force component of a vehicle weight acting in a longitudinal direction of said motor vehicle based on a road surface gradient and is applied in a direction of canceling the vehicle weight force component; and
(b) when a driver'"'"'s depression amount of a brake pedal becomes less than a preset level to move said motor vehicle in the acting direction of the vehicle weight force component after a gearshift operation of a gearshift lever to a parking position, controlling the multiple motors to ensure output of the adjusted driving force from at least one of the multiple motors and controlling the locking structure to lock the axle.
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Specification