Parking assist device

• US 20050057374A1
• Filed: 08/30/2004
• Published: 03/17/2005
• Est. Priority Date: 08/29/2003
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Matsui, Akira, Satonaka, Hisashi, Kataoka, Hiroaki, Sugiyama, Toru, Kubota, Yuichi, Endo, Tomohiko, Iwazaki, Katsuhiko, Iwakiri, Hideyuki, Kawakami, Seiji, Tanaka, Yuu, Iwata, Yoshifumi
• Granted Patent: US 7,075,456 B2
• Time in Patent Office: Days
• US Class Current: 340/932.200
• CPC Class Codes: B60T 2201/10 Automatic or semi-automatic parking aid systems
• CPC Class Codes: B62D 15/028 Guided parking by providing commands to the driver, e.g. acoustically or optically
• CPC Class Codes: B62D 15/0285 Parking performed automatically
• CPC Class Codes: G08G 1/14 indicating individual free spaces in parking areas

Abstract

A parking assist device includes a leading path generation judging device for judging whether an effective leading path to a target parking position is generated. According to the parking assist device, a parking assist for leading a vehicle to the target parking position is conducted in accordance with a judged result of the leading path generation judging device. The leading path generation judging device includes a first judging device for judging whether the leading path is generated when an initial steering angle of the vehicle is determined as a steering angle initial value, and a second judging device for judging whether the leading path is generated when a steering angle other than the initial steering angle is determined as the steering angle initial value in case it is judged that the leading path is not generated by the first judging device.

Claims

1. A parking assist device comprising:

a leading path generation judging means for judging whether an effective leading path to a target parking position is generated;

wherein

a parking assist for leading a vehicle to the target parking position is conducted in accordance with a judged result of the leading path generation judging means; and

wherein

the leading path generation judging means comprises;

a first judging means for judging whether the leading path is generated when an initial steering angle of the vehicle is determined as a steering angle initial value; and

a second judging means for judging whether the leading path is generated when a steering angle other than the initial steering angle is determined as the steering angle initial value in case it is judged that the leading path is not generated by the first judging means.

2. The parking assist device according to claim 1, further comprising:

a steering direction means for directing steering operation to the steering angle other than the initial steering angle in case it is judged that the leading path is generated by the second judging means when the steering angle other than the initial steering angle is determined as the steering angle initial value after it is judged that the leading path is not generated by the first judging means when the initial steering angle of the vehicle is determined as the steering angle initial value.

3. The parking assist device according to claim 2, wherein a steering direction by the steering direction means includes a guidance direction for suggesting an operator the steering operation to the steering angle other than the initial steering angle.

4. The parking assist device according to claim 3 further comprising:

a steering operation direction means to decrease the steering angle of wheels for conducting the guidance direction suggesting the operator decrease the steering angle of the wheels in case the vehicle is steered deviated from a steering angle range for generating the leading path after operation of the guidance direction by the steering direction means.

5. The parking assist device according to claim 1, wherein

the initial steering angle is at a neutral positional state;

and

the second judging means judges whether the leading path is generated when the steering angle other than the initial steering angle is determined as the steering angle initial value based on a positional relationship between the target parking position and a locus using a maximum allowable steering angle of the vehicle as the steering angle initial value.

6. The parking assist device according to claim 1, wherein

steering direction is conducted in case the steering angle is other than a steering angle at a neutral position and the leading path can be generated.

7. The parking assist device according to claim 1, wherein

the parking assist is canceled in case the leading path is not generated.

8. The parking assist device according to claim 1, wherein steering direction is conducted in case the leading path is not generated when an actual steering angle is determined as the steering angle initial value.

9. The parking assist device according to claim 4, wherein the steering operation direction to decrease the steering angle of the wheels is conducted in case an actual steering angle exceeds the steering angle for generating the leading path.

10. The parking assist device according to claim 3, wherein the steering operation direction from the steering direction means is generated by a speaker.

11. A parking assist device comprising:

a leading path generation judging means for judging whether an effective leading path to a target parking position is generated;

wherein

a parking assist for leading a vehicle to the target parking position is conducted in accordance with a judged result of the leading path generation judging means; and

wherein

the leading path generation judging means comprises;

a first judging means for judging whether the leading path is generated when an initial steering angle, which is a neutral position state, of the vehicle is determined as a steering angle initial value; and

a second judging means for judging whether the leading path is generated when a steering angle other than the initial steering angle is determined as the steering angle initial value in case it is judged that the leading path is not generated by the first judging means.

12. A parking assist device comprising:

a leading path generation judging means for judging whether an effective leading path to a target parking position is generated;

wherein

a parking assist for leading a vehicle to the target parking position is conducted in accordance with a judged result of the leading path generation judging means; and

wherein

the leading path generation judging means comprises;

a first judging means for judging the leading path is based on an initial steering angle of the vehicle; and

a second judging means for judging whether the leading path is generated when a steering angle other than the initial steering angle is determined as the steering angle initial value in case it is judged that the leading path is not generated by the first judging means.