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Control device and control method for vehicle

A technology for controlling equipment and control methods, applied in electrical control, mechanical equipment, engine control, etc., can solve problems such as inability to capture rotational speed increments, inability to ensure learning frequency, and achieve the effect of ensuring learning frequency

Inactive Publication Date: 2013-01-09
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the fuel injection control apparatus disclosed in the above-mentioned document, when the lock-up clutch of the automatic transmission is engaged, vibrations from the wheels are transmitted to the engine, so that it is impossible to capture the increase in rotational speed corresponding to learning injection
Therefore, it may not be possible to ensure the learning frequency required for obtaining sufficient accuracy of injection quantity learning

Method used

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  • Control device and control method for vehicle
  • Control device and control method for vehicle
  • Control device and control method for vehicle

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Embodiment Construction

[0032]Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, the same components are provided with the same reference numerals, and also have the same names and functions. Therefore, its detailed description will not be repeated.

[0033] A power train of a vehicle equipped with a control apparatus according to an embodiment of the present invention will now be described. The control device for a vehicle according to the present embodiment is configured by figure 1 The program executed by the shown ECU (Electronic Control Unit) 1000 is implemented. In the present embodiment, the automatic transmission will be described as an automatic transmission having a torque converter serving as a fluid coupling and a gear-type transmission mechanism formed of a planetary gear unit. Note that the automatic transmission may be one having a belt-type or traction-type continuously variable transmission (CVT) ...

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Abstract

An ECU executes a program which includes a step (S106) of performing a process of inhibiting lock-up when a predetermined condition is established (YES in S100, YES in S104, and YES in S108), a step (S110) of performing small injection amount learning, a step (S120) of performing lock-up control if a turbine rotation speed is not decreased (YES in S112), elapsed time is at least predetermined time L (YES in S114), and a slip amount is smaller than I (1) (YES in S118), and a step (S124) of terminating slip control if the turbine rotation speed is decreased (NO in S112), and the slip amount is at least I (1) (NO in S118).

Description

technical field [0001] The invention relates to a control device for a vehicle, wherein said vehicle is equipped with a diesel engine and an automatic transmission including a fluid coupling provided with a lock-up clutch, and in particular to a control device for learning diesel engine small injection The technique of temporarily performing slip control during the quantity control process. Background technique [0002] An automatic transmission for a vehicle includes a fluid coupling connected to an output shaft of an engine, and a gear-type multi-stage transmission mechanism or a belt-type or traction-type continuously variable transmission mechanism connected to the output shaft of the fluid coupling. An example of a hydrodynamic coupling is a torque converter, which often has a lock-up clutch that can directly couple the input side and the output side of the torque converter. By engaging the lock-up clutch, the input side and output side of the torque converter are cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/02F02D41/24F16H61/14F02D41/14
CPCF16H61/143F02B11/02F02D2400/12F02B1/12B60W2710/024F16H2061/0087F02D41/2438F16H59/74B60W10/06F02D41/247B60W10/026F16H2061/145F02D2200/1002F02D41/022F02D41/1498
Inventor 皆木俊大岛康嗣
Owner TOYOTA JIDOSHA KK
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