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Hybrid electric vehicle regenerative power control system, vehicle and control method

A hybrid vehicle, hybrid system technology, applied in hybrid vehicles, electric braking systems, motor vehicles, etc., can solve the problems of inability to achieve fuel economy, futile abandonment, etc., to improve fuel economy and durability. The effect of preventing excessive charging

Active Publication Date: 2021-06-11
ISUZU MOTORS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned regeneration control device for a hybrid vehicle, since the amount of regeneration is reduced to a predetermined value according to the gradient when going downhill, that is, although the amount that can be regenerated becomes larger as the gradient becomes larger, the amount that can be regenerated Most of the amount of regeneration is discarded in vain, and as a result, there is a problem that improvement of fuel economy cannot be realized

Method used

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  • Hybrid electric vehicle regenerative power control system, vehicle and control method
  • Hybrid electric vehicle regenerative power control system, vehicle and control method
  • Hybrid electric vehicle regenerative power control system, vehicle and control method

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Embodiment Construction

[0029] Embodiments of the present disclosure will be described below with reference to the drawings. figure 1 A hybrid vehicle including a regenerative electric power amount control system for a hybrid vehicle constituted by an embodiment of the present disclosure is shown.

[0030] This hybrid vehicle (hereinafter referred to as "HEV") is a vehicle including not only a general passenger car but also a bus or a truck, a pickup truck, etc., and includes a hybrid system 30 having The engine 10 and the motor generator 31 are controlled complexly.

[0031] In the engine 10 , a crankshaft 13 is rotationally driven by thermal energy generated by combustion of fuel in a plurality (four in this example) of cylinders 12 formed in an engine body 11 . A diesel engine or a gasoline engine is used for the engine 10 . The rotational power of the crankshaft 13 is transmitted to the transmission 20 through a clutch 14 (for example, a wet multi-plate clutch, etc.) connected to one end of the...

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Abstract

Control is performed such that when the road gradient (G) at the place where the hybrid vehicle is traveling is a downhill gradient equal to or greater than a preset gradient threshold value (G1), the regenerative system set based on the traveling state of the hybrid vehicle is controlled. Motor generator (31) is calculated by adding the corrected regenerative power amount (Ec) set as a monotonically increasing function of the downhill gradient (G) of the traveling location to the basic regenerative power amount (Eb) as the amount of electric power The target value of the regenerative power amount is the target regenerative power amount (Et).

Description

technical field [0001] The present disclosure relates to a control system for the amount of regenerative electric power of a hybrid vehicle, a hybrid vehicle, and a method for controlling the amount of regenerative electric power of a hybrid vehicle, and more specifically, to a control system including an engine and a motor generator as a power source for running the vehicle. A hybrid vehicle regenerative power control system of a hybrid system of the device, a hybrid vehicle, and a hybrid vehicle regenerative power control method. Background technique [0002] In recent years, attention has been drawn to a hybrid electric vehicle (hereinafter referred to as "HEV") including a hybrid system that is comprehensively controlled according to the operating state of the vehicle from the viewpoint of fuel economy improvement and environmental measures. Engines and motor generators. In this HEV, when the vehicle is accelerating or starting, the motor generator is used to assist the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/08B60K6/485B60K6/54B60L7/18B60L50/16B60L15/20B60W10/26B60W20/14
CPCB60K6/485B60K6/54B60L7/18B60L15/20B60W10/08B60W10/26B60W20/14B60L50/16Y02T10/62Y02T10/7072Y02T10/72
Inventor 山角竜稻村晃浩
Owner ISUZU MOTORS LTD
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