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Vehicle steering device

A technology for steering devices and vehicles, applied to steering mechanisms, steering rods, vehicle components, etc., can solve problems such as falling into abnormal states, achieve the effects of maintaining steering functions, ensuring degrees of freedom, and reducing size

Active Publication Date: 2015-09-02
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, for example, when the steering motor is in a certain abnormal state, as a result of receiving the abnormal state of the steering motor and performing an abnormal diagnosis, the behavior of the vehicle may fall into an abnormal state during the abnormal occurrence diagnosis.

Method used

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Experimental program
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Embodiment Construction

[0057] Hereinafter, a vehicle steering device according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0058] Figure 1A It is a block diagram showing the outline of the vehicle steering device 101 according to the embodiment of the present invention. Figure 1B It is an internal configuration diagram of the first to third control devices 354 , 363 , and 393 included in the vehicle steering system 101 . figure 2 It is a transverse sectional view taken along the line A-A showing the disconnected state of the coupling device 4 . image 3 It is a longitudinal cross-sectional view showing the disconnected state of the coupling device 4 . Figure 4 It is a transverse cross-sectional view taken along the line A-A showing the coupling state of the coupling device 4 . Figure 5 It is a longitudinal cross-sectional view showing the coupling state of the coupling device 4 .

[0059] Such as Figure 1A As shown, the vehicle ste...

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Abstract

A vehicle steering device (101) is provided with: a turning unit (3) which has a first motor (332) and a second motor (342) for turning that have an electric characteristic set in common with each other, and turns steered wheels (30a, 30b) according to the operation of a steering wheel (1); a first current sensor (332A) which detects a first current value flowing through the first motor (332); a second current sensor (342A) which detects a second current value flowing through the second motor (342); and an abnormality diagnosis unit (79a, 79b, 79c). The abnormality diagnosis unit (79a, 79b, 79c) diagnoses the turning unit (3) as being abnormal when the deviation between the first and second current values detected by the first and second current sensors (332A, 342A), respectively, exceeds a predetermined threshold. For example, when some kind of abnormality has occurred in the current detection unit (332A, 342A) for detecting the magnitude of a current flowing through the motor for turning (332, 342), the occurrence of the abnormality is rapidly diagnosed.

Description

technical field [0001] The present invention relates to a vehicle steering device used to change the traveling direction of a vehicle to a desired direction. Background technique [0002] In recent vehicles, a By-Wire steering device is used which converts a driver's steering intention into an electric signal through an electric wire and transmits it to the steering wheels. In the above-mentioned steer-by-wire steering device, the direction and amount of manipulation of the steering wheel by the driver are converted into electrical signals and supplied to a steering device including a steering motor. Then, the steering device operates to steer the steered wheels according to the driver's steering intention by driving the steering motor based on the electric signal (for example, refer to Patent Document 1). [0003] According to the steer-by-wire steering device of Patent Document 1, for example, when traveling on a rough road surface such as a rut, even if one of the pair o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00F16D41/06F16D41/08B62D101/00B62D111/00B62D113/00B62D119/00B62D137/00
CPCF16D41/06B62D5/003F16D41/08B62D5/001F16D27/00F16D2041/0601F16D41/088F16D41/064B62D5/046B62D5/0484B62D5/0487
Inventor 清水康夫池谷学米田笃彦三好尚大庭吉裕
Owner HONDA MOTOR CO LTD
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