Method and device for power supply under idling condition

A technology of idling condition and power supply method, which is applied in the direction of transportation and packaging, circuit or fluid pipeline, vehicle components, etc., can solve the problems of low engine load and inability to apply manual gearbox, etc., to reduce external load and improve vehicle interior Idling vibration, the effect of a wide range of applications

CN106080451BActive Publication Date: 2018-10-12SAIC GENERAL MOTORS +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2018-10-12

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Abstract

The invention discloses a power supply method and device used under idling working conditions. The method includes the step of detection and the step of power supply mode change. The detection step includes the substep that whether current working conditions of a vehicle meet idling working condition power supply conditions or not is detected. The power supply mode change step includes the substep that if the idling working condition power supply conditions are met, power generation voltage of a power generator is adjusted, so that the power generator and a storage battery supply power to an external load together, and an idling working condition power supply mode starts. Under the idling working conditions, the power generation amount of the power generator is reduced, accordingly the external load of an engine is reduced, and idling vibration in the vehicle is improved. Compared with the prior art, idling vibration in the vehicle is improved by controlling the power generation amount of the power generator, the power supply method and device are not limited by the type of gearboxes and air conditioner compressors, and the application range is wider.
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Description

technical field

[0001] The invention relates to the field of automobiles, in particular to a power supply method and device under idling conditions. Background technique

[0002] The engine combustion excitation is the excitation generated by the periodic ignition work of each cylinder of the engine. refer to figure 1 As shown, for a single cylinder, the calculation formula of combustion torque is as follows:

[0003] T=(F / cosα)·r

[0004] Where F is the gas force, which is equal to the cylinder pressure multiplied by the cross-sectional area of ​​the piston.

[0005] After the combustion torque of each cylinder of the engine is superimposed according to the phase difference, it is Fourier transformed, and it can be known that the energy of the combustion torque is concentrated in the main excitation frequency and its multiple frequency. According to the difference of engine structure and working stroke, the calculation formula of the main excitation frequency is as foll...

Examples

Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings. It is only intended to describe the specific implementation of the present invention in detail, and does not impose any limitation on the present invention, and the scope of protection of the present invention shall be determined by the claims.

[0043] refer to figure 2 , the present invention proposes a power supply method under idling conditions, including:

[0044] The detection step S001 includes: detecting whether the current working condition of the vehicle satisfies the power supply condition of the idling working condition;

[0045] The step S002 of changing the power supply mode includes: if the power supply condition of the idling condition is satisfied, then adjusting the generator voltage so that the generator and the storage battery jointly supply power to the external load, and enter the power supply mode of the idling cond...