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Crankshaft positioning control system and control method of vehicle

A positioning control and crankshaft technology, applied in electrical control, engine control, fuel injection control, etc., can solve problems such as poor engine startability

Active Publication Date: 2018-10-16
KYMCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, once the main switch is changed to the disconnected state (Key OFF), the integrated starter generator controller 13 will lose power and cannot continue crankshaft positioning, resulting in that when the main switch is turned on next time, the crankshaft will not stop at the optimal position. position, so the initial start of the engine is not good

Method used

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  • Crankshaft positioning control system and control method of vehicle
  • Crankshaft positioning control system and control method of vehicle
  • Crankshaft positioning control system and control method of vehicle

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] refer to figure 2 The embodiment of the crankshaft positioning control system for a vehicle of the present invention is applicable to a crankshaft (not shown) positioning control process of a single-cylinder or multi-cylinder engine, a battery 22, and an engine control unit (ECU) 23.

[0025] In this embodiment, the crankshaft positioning control system of the vehicle includes a main switch 20, an integrated starter generator (ISG) 24, a rotor position sensor 25, a power relay 26, and an integrated starter generator control Device 21.

[0026] The storage battery 22 is used to provide the power required by the integrated starter generator controller 21 and the engine control unit 23 .

[0027] The engine control unit 23 is mainly used to control the injection electrical components (such as fuel injectors, ignition coils, etc.), so that the e...

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PUM

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Abstract

The invention relates to a crankshaft positioning control system and a control method of a vehicle. The crankshaft positioning control method of the vehicle is suitable for a positioning control process of a crankshaft of an engine, and comprises the following steps that when one main switch is changed from the on state to the off state, an integrated starting generator controller is used for utilizing an auxiliary power source, a flameout control programming is executed, and the flameout control programming judges whether the engine rotation speed is smaller than a crankshaft positioning rotation speed threshold value; and if the engine rotating speed is smaller than the crankshaft positioning rotating speed threshold value, an integrated starting generator controller is used for executing the flameout crankshaft positioning programming, so that a crankshaft angle falls in a non-compression stroke.

Description

technical field [0001] The invention relates to a crankshaft positioning control system and a control method, in particular to a crankshaft positioning control system and a control method in a vehicle main switch off state. Background technique [0002] refer to figure 1 , China Taiwan No. I476320 Announcement Patent Case discloses a control method for reducing engine starting torque, which uses an integrated starter generator (Integrated Starter and Generator, ISG) 14 to make the engine Stopping on the non-compression stroke, so that the next time the engine is restarted, the torque required to start the engine can be reduced. The integrated starter generator 14 is electrically connected to a battery 15 and the integrated starter generator controller 13 . [0003] Since the action of the four-stroke engine includes four strokes of intake, compression, explosion, and exhaust, the range of the crankshaft angle of the crankshaft (not shown) is 720°. In order to determine wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/06
CPCF02D41/062
Inventor 廖伟翔邓信良
Owner KYMCO