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Shift-by-wire control system

A technology of shift-by-wire and control system, applied in the direction of transmission control, registration/indication, time register, etc.

Inactive Publication Date: 2021-06-04
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So there is room for improvement in terms of verbosity

Method used

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  • Shift-by-wire control system
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  • Shift-by-wire control system

Examples

Experimental program
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Embodiment Construction

[0024] Refer to the following Figure 1 to Figure 15 One embodiment of the present invention will be described. figure 1 It is a diagram schematically showing the configuration of main parts of a vehicle 100 equipped with a shift-by-wire control system 1 according to an embodiment of the present invention. The shift-by-wire control system is configured to change a gear by using an electric signal generated in response to a driver's operation. In addition, in figure 1 A schematic configuration of the vehicle 100 and electrical paths on the vehicle 100 are summarized in .

[0025] Such as figure 1 As shown, a vehicle 100 equipped with a shift-by-wire control system 1 according to this embodiment has an engine (Eng) 101 mounted in front of the vehicle and an automatic transmission (T / M) 102 connected to a crankshaft of the engine 101 . This vehicle 100 is a front-wheel-drive vehicle in which rotation output from an engine 101 is shifted by an automatic transmission 102 to dri...

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PUM

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Abstract

A shift-by-wire control system (1) provided by the present invention is provided with an actuator (110) for changing a gear stage, an actuator control unit (107), a main power source (104), an auxiliary power source (112a), and power control units (107, 112b). The power control units (107, 112b) control a circuit (200) to supply power from the auxiliary power source (112b) to an actuator control unit (107) when it is determined that power supply from the main power source to the actuator is abnormal and the vehicle speed is equal to or less than a predetermined value, and when the power is supplied from the auxiliary power source (112b) to the actuator control unit (107) and the voltage output from the auxiliary power source (112b) is equal to or less than a predetermined value when it is determined that the voltage output from the auxiliary power source (112b) is equal to or less than a predetermined value, the actuator control unit (107) controls the actuator (110) and changes a shift range to a parking range.

Description

technical field [0001] The present invention relates to a shift-by-wire control system for changing a shift gear by using an electric signal generated according to a driver's operation. Background technique [0002] As such a device, a device having an auxiliary power source in addition to a main power source is known. Such a device is described in Patent Document 1, for example. The device described in Patent Document 1 switches to an auxiliary power supply when a failure occurs in the main power supply system, and changes the shift position to a parking position when the voltage supplied from the auxiliary power supply falls below a predetermined voltage. [0003] In the device described in Patent Document 1, the control device for switching to the auxiliary power supply when the main power supply fails is always connected to the auxiliary power supply. Therefore, there is room for improvement in terms of verbosity. [0004] prior art literature [0005] Patent Documen...

Claims

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Application Information

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IPC IPC(8): F16H59/44F16H61/12F16H61/32F16H63/34
CPCF16H59/44F16H61/12F16H61/32F16H63/3458F16H2061/1292F16H2061/1224B60W30/19B60W50/0205B60W50/023B60W2520/10B60W30/143G07C5/0808B60R16/0232
Inventor 宫田和典
Owner HONDA MOTOR CO LTD