Steering device control method and vehicle

A technology of a steering device and a control method, which is applied in the field of vehicles, and can solve problems such as difficult wheel steering, inability to cope with vehicle lateral movement, small turns, complex structure, etc., and achieve the effect of eliminating gnawing

CN106458256AInactive Publication Date: 2017-02-22NTN CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-02-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a steering device control method and a vehicle. The steering device control method includes: a step for issuing a separation or a joining command to a linking mechanism (63) for moving a pair of rack bars (53, 54), which are capable of steering left and right wheels (w) in opposite lateral directions, in the same lateral direction by the same distance or in opposite lateral directions by the same distance; and a step for relatively driving, using a steering driving means, an engaging part (63a) and / or a receiving part (63b) of the linking mechanism (63) if, after a predetermined time defined in advance has elapsed after the command has been issued, a linking state detection means (78) provided to the linking mechanism (63) has not been able to confirm that the separation or the joining has taken place.
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Description

technical field

[0001] The present invention relates to a control method of a steering device for smoothly turning wheels of a vehicle equipped with a four-wheel steering mechanism, and a vehicle using the control method. Background technique

[0002] In the structure that steers the wheels using the steering linkage mechanism that connects the left and right wheels (hereinafter, including tires, wheels, hubs, and in-wheel motors, etc., collectively referred to as "wheels"), there is a structure called Ackermann steering geometry. steering mechanism. This steering mechanism uses a tie rod and a steering arm so that left and right wheels have the same turning center when the vehicle turns.

[0003] As this steering mechanism, for example, there is a structure shown in Patent Document 1 below. This steering mechanism is equipped with a steering link mechanism of the left and right wheels using a tie rod and a steering arm on at least one of the front wheel side or the rear w...

Examples

Embodiment Construction

[0041] Embodiments of the vehicle according to the present invention will be described based on the drawings. First, after roughly describing the steering mechanism of the vehicle and each driving mode, the flow of processing when an abnormality occurs due to switching of the driving mode will be described.

[0042] (1) For the steering mechanism and each driving mode of the vehicle

[0043] figure 1 The drive system and control path of the vehicle 1 according to the present invention are shown in . In this vehicle 1 , front left and right wheels (FL, FR) and rear left and right wheels (RL, RR) are connected to front and rear steering devices 10 , 20 via tie rods 12 , 22 , respectively.

[0044] The respective steering devices 10 and 20 for the front wheels and the rear wheels are provided with two rack bars for steering the left and right wheels w. Hereinafter, the rack bar connected to the wheel w on the left side of the front wheel and the rear wheel with respect to the...