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Steering controller of vehicle

A steering control and vehicle technology, which is applied to automatic steering control components, vehicle components, steering mechanisms, etc., and can solve the problems of no record of steering control and no consideration of responses.

Inactive Publication Date: 2013-04-24
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the above-mentioned Patent Documents 1 to 5, there is no description that the phase difference between the yaw rate and the lateral acceleration is properly considered to perform steering control.
In addition, there is a tendency that the phase difference between the yaw rate and the lateral acceleration is different between the driver's seat (driver's seat) and the rear seat, but no countermeasures for this have been taken into consideration.

Method used

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  • Steering controller of vehicle
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  • Steering controller of vehicle

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0048] In the first embodiment, the system controller 10 selects which position (the driver's seat or the rear seat) is given priority in the relationship (phase difference) between the lateral acceleration and the yaw rate at low speed so that the selected position Steering controls are performed in a way that the occupants do not feel uncomfortable. More specifically, the system controller 10 performs steering control so that the phase of the lateral acceleration is ahead of the phase of the yaw rate at the selected position.

[0049] In detail, in the first embodiment, the system controller 10 determines the position in the vehicle interior giving priority to the relationship between the lateral acceleration and the yaw rate according to the presence or absence of a rear seat occupant. In this case, the system controller 10 determines the driver's seat as a position giving priority to the relationship between the lateral acceleration and the yaw rate when there is no rear s...

no. 2 Embodiment

[0057] Next, a second embodiment will be described. The second embodiment is different from the first embodiment in that the position in the vehicle interior where the relationship between the lateral acceleration and the yaw rate is prioritized is determined according to the driver's will (that is, the predetermined position is determined according to the driving mode). That is, in the second embodiment, as described above, after determining the position in the vehicle interior where the relationship between the lateral acceleration and the yaw rate is prioritized according to the presence or absence of a rear seat occupant, the position is changed according to the driver's intention.

[0058] Specifically, in the second embodiment, the driver selects a position giving priority to the relationship between the lateral acceleration and the yaw rate, and performs steering control so that the occupants at the position selected by the driver do not feel uncomfortable. In this case...

no. 3 Embodiment

[0064] Next, a third embodiment will be described. In the third embodiment, the position in the vehicle interior that gives priority to the relationship between the lateral acceleration and the yaw rate is determined according to the running mode (that is, the above-mentioned predetermined position is determined according to the running mode), which is different from the first and second embodiments in this point. Examples are different. That is, in the third embodiment, as described above, the position in the vehicle interior where the relationship between the lateral acceleration and the yaw rate is prioritized is determined based on the presence or absence of a rear seat occupant, and then the position is changed according to the travel mode. Specifically, in the third embodiment, the system controller 10 determines a position where the relationship between the lateral acceleration and the yaw rate is given priority based on the driving mode set by the driver, etc., and per...

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Abstract

A steering control device for a vehicle independently performs a steering control of front wheels and rear wheels. A phase control unit performs a control of a steering control unit so as to control a phase difference between a yaw rate and a lateral acceleration at a predetermined position in a vehicle interior. Additionally, a setting unit sets the predetermined position based on a riding position condition of passengers in the vehicle interior. Therefore, it is possible to appropriately control the phase difference between the yaw rate and the lateral acceleration at the predetermined position in the vehicle interior. So, it becomes possible to appropriately ensure a comfort (ride quality) of the passenger at the predetermined position.

Description

technical field [0001] The present invention relates to a steering control device for a vehicle that independently controls the steering angle of the front wheels and the steering angle of the rear wheels. Background technique [0002] Such techniques are proposed in Patent Documents 1 to 3, for example. Patent Document 1 proposes that in a vehicle equipped with a four-wheel steering control device, the detected yaw rate is fed back to correct the rear wheel steering angle and control the lateral acceleration. In Patent Document 2, it is proposed to detect the yaw rate and the lateral acceleration in the four-wheel steering control device, and control the rear wheel steering angle according to the magnitude of the lateral acceleration. Patent Document 3 proposes a technique in which a driver can freely select either one of lateral G-sensing control and yaw rate-sensing control by rear wheel control to give priority to a four-wheel steering control device. [0003] Other te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B62D7/14B62D101/00B62D109/00B62D113/00
CPCB62D6/002B62D7/159
Inventor 西川智久
Owner TOYOTA JIDOSHA KK