Parking assist system
AssigneeAisin Corporation
InventorsAtsuto OGINO, Kota SHIKAWA
Life of this patent
Estimating the term…
Abstract
Speed control processing by a vehicle control unit includes: first operation processing OP1 that is performed in a first range H1 that is a part of a movement route to a target parking position Pt and includes the target parking position Pt; and second operation processing OP2 performed in a second range H2 that is farther from the target parking position Pt than the first range H1 is. In the second operation processing OP2, a target speed V is decreased at a constant deceleration, and in the first operation processing OP1, the target speed V is decreased at a deceleration whose absolute value decreases as a remaining distance L, on the movement route, to the target parking position Pt becomes smaller.
Claims4
A parking assist system comprising:
- a vehicle control unit that performs vehicle control for moving a vehicle including a wheel to a parking space by controlling a driving force and a braking force acting on the wheel;
- and
- a speed detection unit that detects a real speed that is an actual speed of the vehicle,
- wherein the vehicle control unit performs:
- speed control processing of controlling a speed of the vehicle by calculating a target speed for moving the vehicle to a target parking position set in the parking space and then stopping the vehicle;
- and
- drive control processing of controlling the driving force and the braking force acting on the wheel so as to cause the real speed to become closer to the target speed,
- the speed control processing includes:
- first operation processing performed in a first range that is a part of a movement route to the target parking position and includes the target parking position;
- and
- second operation processing performed in a second range that is farther, on the movement route, from the target parking position than the first range is,
- the vehicle control unit decreases, in the second operation processing, the target speed at a constant deceleration, and
- the vehicle control unit decreases, in the first operation processing, the target speed at a deceleration whose absolute value becomes smaller as a remaining distance becomes smaller, the remaining distance being a distance on the movement route and being between the target parking position and the vehicle.
Dependencies are inferred from the claim text.