TRAVEL EVALUATION METHOD AND PSEUDO-EMOTION GENERATION METHOD

• US 20200130700A1
• Filed: 06/27/2018
• Published: 04/30/2020
• Est. Priority Date: 06/27/2017
• Status: Active Grant

• Current Assignee: Kawasaki Motors
• Original Assignee: Kawasaki Jukogyo Kabushiki Kaisha
• Inventors: TOKUNAGA, Hisato, ICHIKAWA, Kazuhiro
• Granted Patent: US 11,760,357 B2
• Time in Patent Office: Days
• CPC Class Codes: B60W 2040/1307 Load distribution on each wheel suspension
• CPC Class Codes: B60W 2040/1384 the component being the wheel
• CPC Class Codes: B60W 2050/0025 Transfer function weighting factor
• CPC Class Codes: B60W 2300/36 Cycles; Motorcycles; Scooters
• CPC Class Codes: B60W 2420/22 Strain gauge
• CPC Class Codes: B60W 2422/70 on the wheel or the tire
• CPC Class Codes: B60W 2510/202 Steering torque
• CPC Class Codes: B60W 2520/10 Longitudinal speed
• CPC Class Codes: B60W 2520/18 Roll
• CPC Class Codes: B60W 2530/20 Tyre data
• CPC Class Codes: B60W 2552/00 Input parameters relating to infrastructure
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2556/10 Historical data
• CPC Class Codes: B60W 40/08 related to drivers or passengers
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: B60W 40/10 related to vehicle motion
• CPC Class Codes: B60W 40/12 related to parameters of the vehicle itself , e.g. tyre models
• CPC Class Codes: B60W 40/13 Load or weight

Abstract

Provided is a travel evaluation method of making an evaluation related to travel of a vehicle capable of traveling in a leaning position, the method including: obtaining a tire force which is an external force exerted on a wheel of the vehicle from a ground surface; and deriving an evaluation index related to travel of the vehicle. The evaluation index includes a positive evaluation index as a rating of a positive evaluation related to travel of the vehicle. In deriving the evaluation index, the positive evaluation index is set higher as the tire force increases, and the evaluation index is corrected based on an influential parameter other than the tire force.

Claims

1. A travel evaluation method of making an evaluation related to travel of a vehicle capable of traveling in a leaning position, the method comprising:

obtaining a tire force which is an external force exerted on a wheel of the vehicle from a ground surface; and

deriving an evaluation index related to travel of the vehicle, wherein

the evaluation index includes a positive evaluation index as a rating of a positive evaluation related to travel of the vehicle,

in deriving the evaluation index, the positive evaluation index is set higher as the tire force increases, and

in deriving the evaluation index, the evaluation index is corrected based on an influential parameter other than the tire force.

2. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, an influential parameter for correcting the positive evaluation obtained based on the tire force is set when a predetermined correction state is established during a leaning-position travel period in which the vehicle travels in a leaning position.

3. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, the evaluation index is corrected to decrease the positive evaluation index when the vehicle is determined to be in a slow-speed turning state.

4. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, the evaluation index is corrected to increase the positive evaluation index related to travel when the vehicle is determined to be in an alternate clockwise-counterclockwise turning state where the vehicle is banked alternately in opposite directions.

5. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, the evaluation index is corrected to increase the positive evaluation index related to travel when the vehicle is determined to be in a travel state where at least one of a roll rate and a steering torque of the vehicle in an upright position is higher than a comparison value predetermined for alternate clockwise-counterclockwise turning.

6. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, the evaluation index is corrected to decrease the positive evaluation index when the vehicle is determined to be in a traffic jam travel state.

7. The travel evaluation method according to claim 6, wherein in deriving the evaluation index, whether the vehicle is in the traffic jam travel state is determined based on both a vehicle speed and an acceleration in a forward/rearward direction.

8. The travel evaluation method according to claim 1, wherein in deriving the evaluation index, the influential parameter is set depending on a past trend of travel or depending on the driver of the vehicle.

9. The travel evaluation method according to claim 1, wherein

the tire force includes a forward/rearward force component exerted in a forward/rearward direction and a lateral force component exerted in a leftward/rightward direction, and

in deriving the evaluation index, the evaluation index is corrected by weighting the forward/rearward force component and the lateral force component differently.

10. A pseudo-emotion generation method of generating a pseudo-emotion of a vehicle capable of traveling in a leaning position, the method comprising:

obtaining a tire force which is an external force exerted on a wheel of the vehicle from a ground surface;

deriving an emotion evaluation index as a rating of a pseudo-emotion of the vehicle; and

generating the pseudo-emotion based on the derived emotion evaluation index, wherein

the emotion evaluation index includes a positive evaluation index as a rating of a positive emotion,

in deriving the evaluation index, the positive evaluation index is set higher as the tire force increases, and

in deriving the evaluation index, the emotion evaluation index is corrected based on an influential parameter other than the tire force.