Engine starting and energy recovery system and control method thereof

A technology for engine starting and energy recovery, which is applied in the direction of engine starting, engine motor starting, engine components, etc., and can solve problems such as low fuel efficiency

Active Publication Date: 2019-12-20
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an engine starting and energy recovery system and its control method to solve the problem of low fuel efficiency of the starting system based on the fuel engine in the prior art

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  • Engine starting and energy recovery system and control method thereof

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Embodiment Construction

[0027] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a ...

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Abstract

The invention relates to the technical field of automobiles and particularly discloses an engine starting and energy recovery system comprising a generator, a storage battery, a starter, a super capacitor, a bidirectional DC / DC converter, an electronic control switch and a system controller. The generator is in transmission connection with an engine, is in parallel connection with an electric loadfor a finished automobile, and is in parallel connection with the storage battery. The storage battery is in parallel connection with the electric load for the finished automobile. The super capacitor is in parallel connection with the starter. The two ends of the bidirectional DC / DC converter are connected with the anode end of the super capacitor and the anode end of the generator correspondingly. The two ends of the electronic control switch are connected with the anode end of the super capacitor and the anode end of the generator correspondingly. The system controller is connected with acontrol unit of the engine, the generator, the super capacitor, the storage battery, the bidirectional DC / DC converter and the electronic control switch. The super capacitor can drives the starter tostart the engine, the super capacitor can be connected with the storage battery, the generator and the electric load for the finished automobile through the electronic control switch, and the engine starting and energy recovery system is used for recovering vehicle potential energy.

Description

Technical field [0001] The present invention relates to the technical field of engines, in particular to an engine starting and energy recovery system and a control method thereof. Background technique [0002] The current engine starting basically uses a battery as a power source. However, when the engine is started in a cold engine, especially under low temperature conditions, the viscosity of the engine oil increases, which increases the starting resistance of the engine. On the other hand, the internal resistance of the battery increases when the battery is low. The active material activity decreases, and then the discharge capacity decreases. Two reasons make it difficult to start the engine at low temperature; on the other hand, the battery often discharges with high current, especially in the start and stop conditions, which will make the battery reach the life limit earlier. And at low temperatures, if the battery SOC is low, it is basically difficult to start the vehicle...

Claims

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Application Information

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IPC IPC(8): F02N11/08F02B63/04H02J7/34
CPCF02B63/04F02N11/0862F02N11/087F02N2011/0885F02N2011/0888F02N2200/0801F02N2200/101F02N2200/102H02J7/345
Inventor 韩雷
Owner CHINA FIRST AUTOMOBILE
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