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Vehicle control device

A control device and vehicle-mounted technology, which is applied in the field of vehicle control devices, can solve problems such as acceleration response degradation, achieve the effect of preventing acceleration response degradation and ensuring durability

Active Publication Date: 2020-12-01
HITACHI ASTEMO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, due to the influence of this operating time, when the accelerator pedal is stepped on to make a request to return to normal driving, the acceleration response will deteriorate.

Method used

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  • Vehicle control device
  • Vehicle control device
  • Vehicle control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 Is an example of an overall configuration diagram of the vehicle control apparatus mounted to a vehicle according to the present invention, it can be introduced is mounted the pinion gear and the motor driving the starter Examples of the starting device. This vehicle is equipped with a multi-cylinder engine (engine body) 101, an engine automatic start-stop system 102 and the ECU (control means, control means) 103.

[0034] Engine 101 having a crankshaft 104, and is attached to an ignition coil 105, the spark plug 106, the fuel injection valve 107 and the like. Engine 101 as a power source generating a driving force for causing the vehicle to travel functions. Automatic engine start-stop system 102 includes a pinion push starter (starter) body 108, a first semiconductor switching element 109 and the second semiconductor switching element 110, controlled by the ECU 103.

[0035] Moreover, the first semiconductor switching element 109 and the second semiconductor swi...

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PUM

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Abstract

The present invention provides an on-vehicle control device that reduces the charging efficiency of the engine through at least one of the throttle valve or the intake valve when a restart request is generated between the establishment of the automatic engine stop condition and the complete stop. By preventing an increase in the reverse rotational speed of the engine, the durability of the engine starting device is ensured, and deterioration of the acceleration response when a restart request is generated due to an acceleration operation is prevented. The on-vehicle control device of the present invention controls the filling efficiency of the engine according to the required amount of engine output, automatically stops the engine when a predetermined automatic stop condition is established, and controls the engine output according to the engine output requirement between the establishment of the automatic stop condition and the complete stop of the engine. On the other hand, the charging efficiency when the engine restart condition is met is smaller than the charging efficiency corresponding to the required engine output.

Description

Technical field [0001] The present invention relates to a control apparatus for an automatic vehicle stops and automatically start a vehicle control apparatus, particularly relates to a engine. Background technique [0002] In recent years, in order to improve fuel economy, the engine is automatically stopped when the vehicle stops, by a starting device (starter) to restart the engine when the vehicle is starting an engine automatic start-stop system popularized. Further, Patent Document 1 proposes a technique in which: the engine of the vehicle is traveling in a predetermined automatic stop condition is satisfied (e.g., the accelerator pedal is not depressed state after more than a predetermined time), the engine is automatically stopped, and cut off between the engine and the wheels power transmitting path, so as to afford as the vehicle speed with the inertia, thereby achieving higher fuel economy. [0003] In the case of coasting to recover from this normal driving, the engin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D11/10F02D29/02F02N11/08F02N15/00
CPCF02D11/105F02D41/0002F02D41/065F02D2250/06F02N11/0844F02N19/004F02N2200/022F02N2250/04F02D29/02Y02T10/40F02D17/04
Inventor 铃木康平堀俊雄长泽义秋
Owner HITACHI ASTEMO LTD