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hybrid vehicle

A hybrid vehicle, target driving force technology, applied in hybrid vehicles, motor vehicles, vehicle components, etc., can solve the problems of power consumption, large motion energy, and the handover of power without considering the stop of the engine, so as to suppress the deterioration. Effect

Active Publication Date: 2016-08-17
SUZUKI MOTOR CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in conventional hybrid vehicles, no consideration has been given to the transfer of electric power when the engine is stopped. In addition, the above-mentioned Patent Document 1 has the following problem: when the vehicle is at a certain fixed speed or higher, the engine and electric power when the engine is stopped The generator (1st motor generator: MG1, 2nd motor generator: MG2) has more kinetic energy than the engine during operation, so power is consumed to stop the engine

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Embodiment

[0026] Figure 1 to Figure 8 Examples of the present invention are shown.

[0027] exist figure 1 Among them, 1 is a control device of a hybrid vehicle which is an electric vehicle.

[0028] This control device 1 includes: an output shaft 3 of an engine (referred to as "ENG" in the drawing) 2 as a driving source of output torque; Marked as "MG1" on the figure) 4 and the second motor generator (marked as "MG2" on the figure) 5; the drive shaft (marked as "OUT" on the figure) connected to the drive wheel 6 through the output transmission mechanism 7 ”) 8; and a power transmission mechanism (differential gear mechanism) 9 respectively coupled to the output shaft 3 of the engine 2 , the first motor generator 4 , the second motor generator 5 and the drive shaft 8 . That is, in the hybrid vehicle of this embodiment, the power generated from the engine 2 and the first motor generator 4 and the second motor generator 5 is output to the output shaft as the power transmission mechan...

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Abstract

In the hybrid vehicle, the control unit (17) has: a target driving force setting unit (17A), which sets the target driving force required for vehicle running; a target driving power calculation unit (17B), which is based on the target driving force the target drive power set by the setting unit (17A) and the vehicle speed detected by the vehicle speed detection unit (33); (18) Electric power taken out; and transfer inhibiting unit (17D) which consumes power exceeding the output limit value set by the output limiting unit (17C) at the time of transfer control from the operating state to the stopped state of the engine (2) When the value obtained by subtracting the target driving power calculated by the target driving power calculation means (17B), transition to the stopped state of the engine (2) is prohibited. As a result, the transition of the engine (2) from the operating state to the stopped state is managed based on the state of the electric storage unit (18), without negatively affecting the life of the electric storage unit (18) (overdischarge, etc.), and it is possible to suppress the electric storage unit ( 18) Deterioration.

Description

technical field [0001] The present invention relates to a hybrid vehicle, and more particularly to a hybrid vehicle that includes an engine and a motor generator (electric motor) as power sources, and controls a plurality of power sources so as to output a target driving force. Background technique [0002] There is a so-called hybrid vehicle that includes an engine and a motor generator (electric motor) other than the engine as a drive source for improving fuel efficiency. [0003] This hybrid vehicle outputs power generated from an engine and a motor generator to a drive shaft through a power transmission mechanism. [0004] prior art literature [0005] patent documents [0006] Patent Document 1: JP-A-2007-131103 [0007] According to the vehicle and its control method of Patent Document 1, in a hybrid vehicle, a vehicle speed threshold at which intermittent operation of the engine is prohibited is set based on an input restriction of a battery as an electric stora...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/06B60W20/13B60L50/16
CPCB60W10/06B60W10/26B60W20/00B60W20/40B60W2520/10B60W2710/105B60W2710/1061B60W2710/248B60W20/13Y10S903/93Y02T10/40B60W40/105B60W2556/00B60W10/08B60W20/10
Inventor 田川雅章伊藤芳辉细江幸弘大熊仁
Owner SUZUKI MOTOR CORP