Controller of driver for vehicle

A control device and vehicle drive technology, which is applied in the direction of control device, engine control, transmission control, etc., and can solve problems such as incoordination

Inactive Publication Date: 2007-08-01
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the control disclosed in the above-mentioned patent document is simply performed during uphill running so as to obtain the same vehicle acceleration as during flat road running with substantially the same accelerator pedal operation amount during uphill running as during flat road running , the vehicle operator tends to feel uncoordinated when starting uphill driving because the operator does not feel the expected decrease in vehicle acceleration after starting uphill driving

Method used

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  • Controller of driver for vehicle
  • Controller of driver for vehicle
  • Controller of driver for vehicle

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Embodiment Construction

[0040] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Referring to the schematic diagram of FIG. 1, there is shown the arrangement of a vehicle drive system (hereinafter referred to as "drive system") 10 to which the present invention is applied. The drive system 10 includes a torque converter 14 equipped with a lock-up clutch, and a step-variable automatic transmission (hereinafter referred to as “automatic transmission”) 16 . The torque converter 14 and the automatic transmission 16 are provided in a fixed part in the form of a gearbox (hereinafter referred to as a "case") 12 mounted on the vehicle body. Since the drive system 10 is symmetrical with respect to its axis, the The lower half of the drive system 10 , which is located below the axis and is shown in the schematic diagram of FIG. 1 , is not shown in this schematic diagram.

[0042] The automatic transmission 16 includes an input shaft ...

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Abstract

A controller of a driver for a vehicle comprising an uphill driving force control means for increasing the driving force of a vehicle such that an acceleration of vehicle substantially equivalent to that at the time of traveling on a flat road can be attained even if the output request amount during uphill traveling is substantially equal to that during flat road traveling, in which a strange feeling being imparted to an operator during uphill traveling is suppressed. Since start of uphill driving force control by the uphill driving force control means (130) is delayed by a delay control means (131) until a decision is made by a first predetermined period judging means (134) that period (T) exceeds the first predetermined period (T1) in which acceleration difference (G') between the reference vehicle acceleration (G) and the actual acceleration is no less than the predetermined uphill judging threshold (alpha), wherein, a vehicle driving force (F) does not increase even during uphill traveling controlled by the uphill driving force until the first predetermined period (T1), thus a strange feeling being imparted by the decreasing of a predetermined acceleration (G) to an operator during uphill traveling is suppressed.

Description

technical field [0001] The present invention relates to a control device for a drive system of a vehicle, and more particularly, the present invention relates to a control device so arranged that it is compatible with a vehicle during driving on a flat road under a vehicle output demand substantially the same as a given vehicle output demand. For driving force comparison, the control device is used to increase the vehicle driving force during uphill running of the vehicle at the given vehicle output requirement, so as to obtain substantially the same vehicle acceleration during uphill running as during flat road running. Background technique [0002] There is known a vehicle configured to adjust the driving force during uphill travel of the vehicle at the same accelerator pedal operation amount, ie, the same vehicle output demand amount, as during flat road travel of the vehicle. Patent Document 1 describes an example of the vehicle. This document discloses such a technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02F02D29/00
CPCF02D41/021F02D41/10B60W2550/142Y10T477/692B60W10/06F02D11/105F02D2200/702F02D2200/501B60W10/115B60W30/188B60W2552/15
Inventor 北折一郎甲斐川正人桑原清二
Owner TOYOTA JIDOSHA KK
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