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Vehicle control device

A technology for control devices and vehicles, which is applied to vehicle components, automatic starting devices, transmission control, etc., and can solve problems such as driver distrust and reaching the locked state

Inactive Publication Date: 2009-10-28
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] However, in this countermeasure, if the automatic parking control is executed on a slope, it may not be possible to reach the locked state within the above-mentioned reference time, and it is easy to cause the result of the above-mentioned abnormal end processing.
In this case, since the driver has no way to know that the abnormal end process has been formed, the driver may mistakenly think that the parking mechanism has become a locked state. In addition, since the vehicle power is changed to the accessory position instead of the ignition switch off position, the It is not preferable because it will cause the driver to feel distrustful.

Method used

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Examples

Experimental program
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Embodiment approach 1

[0058] Figure 1 to Figure 6 Embodiment 1 of this invention is shown. Before the description of the characteristic part of the present invention, refer to figure 1 , an outline of a power train of a vehicle to which the present invention is applied will be described.

[0059] figure 1 In , it represents a front-engine / front-wheel-drive (FF) powertrain. In the figure, 1 is an engine as a driving source, 2 is an automatic transmission, 3 is a driving wheel, 4 is a foot brake type brake, 5 is a parking mechanism, 6 is a power supply ECU (Electronic Control Unit), and 7 is an engine ECU. , 8 is ECT(Elctronic Controlled Automatic Transmission)_ECU, 9 is ECB(Elctronic Controlled Brake system)_ECU, 10 is SBW(Shift by Wire)_ECU.

[0060] Since these basic configurations are the same as generally known configurations, the parts not directly related to the present invention will be briefly described.

[0061] The engine 1 is a gasoline engine or a diesel engine, and its operation i...

Embodiment approach 2

[0132] Regarding Embodiment 2 of the vehicle control device according to the present invention, for example, refer to Figure 7 Describe in detail. Figure 7 It is a flow chart used in describing the operation of automatic parking control by SBW_ECU.

[0133] This second embodiment is based on the premise of the configuration of the above-mentioned first embodiment, and is characterized by omitting Image 6 Step S29 (representing the notification operation of the operation execution request of the brake 4).

[0134] In short, when the parking mechanism 5 is actuated by the automatic parking control, if the vehicle speed increases due to, for example, parking on a hill and the vehicle deviates, the notification is only made by extending the reference time as in Embodiment 1 above.

[0135] Furthermore, the operation of the automatic parking control by the power supply ECU 6 is the same as that of the first embodiment described above.

[0136] In the case of this second embod...

Embodiment approach 3

[0139] Regarding Embodiment 3 of the vehicle control device according to the present invention, for example, refer to Figure 8 Describe in detail. Figure 8 It is a flow chart used in describing the operation of automatic parking control by SBW_ECU.

[0140] This third embodiment is based on the premise of the configuration of the above-mentioned second embodiment, and is characterized in that in Figure 7 Steps S40 and S41 are added after step S28.

[0141] That is to say, in the third embodiment, in general, when the parking mechanism 5 is actuated by the automatic parking control, after the vehicle speed increases, the reference time is extended and the notification is made as in the second embodiment described above. The case is handled as follows, that is, it is automatically performed: the process of blocking the transmission of driving force from the automatic transmission 2 to the drive wheels 3 ( Figure 8 step S40), and the process of actuating the brake 4 to app...

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Abstract

The invention provides a vehicle control device. Control devices (6, 10) include an end process element and a support process element. The end process element performs a normal end process which stops a vehicle drive source (1) and switches it to an ignition off position if lock is established within a reference time after operation of a parking mechanism (5). On the other hand, if the lock is not established, the end process element performs an abnormal end process which stops the vehicle drive source (1) and switches it to an accessory position. When vehicle speed increase is detected upon operation of the parking mechanism (5), the support process element inhibits operation of the parking mechanism (5) and extends the reference time.

Description

technical field [0001] The present invention relates to a control device used in a vehicle including, for example, a shift-by-wire parking mechanism for switching an output shaft of an automatic transmission mounted in a vehicle such as an automobile to a locked state where it cannot rotate and Able to rotate the unlocked state. Background technique [0002] In conventional automatic transmissions, generally speaking, the driver slides a sliding shift lever provided on the driver's seat, and the operating force is directly transmitted to the parking mechanism or a manual valve through a wire or a lever. For example, any one of the parking position P, the reverse (reverse running) position R, the neutral position N, and the forward (forward running) position D is selected. [0003] Here, when the park range P is selected, the output shaft of the automatic transmission is locked in a non-rotatable state by the parking mechanism. In addition, when the reverse gear R, the neut...

Claims

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Application Information

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IPC IPC(8): B60T7/12B60T1/06F16H63/34
CPCF16H63/483B60T1/005F16H63/3416F16H2312/16
Inventor 井上雄二
Owner TOYOTA JIDOSHA KK
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