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Control system and control method for hybrid vehicle

A technology for a hybrid vehicle and a control system, which is applied to the control system and control field of a hybrid vehicle, can solve the problems of reducing the amount of electric power and difficult to improve fuel economy and the like

Inactive Publication Date: 2014-06-04
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the control described in JP 2011-199959A, the regeneration amount is suppressed from increasing until the shift is completed, so the amount of electric power generated by regeneration may be reduced compared to when the regeneration amount is increased, and it may be difficult to improve fuel economy

Method used

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  • Control system and control method for hybrid vehicle
  • Control system and control method for hybrid vehicle
  • Control system and control method for hybrid vehicle

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Embodiment Construction

[0015] Here, it is preferable that the regenerative coasting travel corresponds to a drive mode in which regeneration is performed by the electric motor during coasting travel. Coasting travel includes coasting and deceleration.

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the embodiments described below, the drawings are simplified or deformed as necessary, and scale ratios, shapes, and the like of parts are not always drawn accurately.

[0017] figure 1 is a view illustrating a schematic configuration of a power transmission path from engine 14 and electric motor MG constituting hybrid vehicle 10 (hereinafter, referred to as vehicle 10 ) to drive wheels 34 . figure 1 is a view illustrating relevant parts of a control system provided in the vehicle 10 for output control of the engine 14 functioning as a drive power source, shift control of the automatic transmission 18 , drive control ...

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Abstract

The invention relates to a control system and a control method for a hybrid vehicle. The control system for the hybrid vehicle includes a controller. When a downshift of a transmission (18) and an increase in an amount of regeneration are carried out during regenerative coast traveling in which regeneration is carried out by an electric motor (MG), and when a state of charge of a battery (46) is lower than a predetermined value, the controller increases the amount of regeneration before completion of the downshift. When the state of charge of the battery (46) is higher than or equal to the predetermined value, the controller increases the amount of regeneration after completion of the downshift.

Description

technical field [0001] The present invention relates to a control system and a control method of a hybrid vehicle, and more particularly, to shift control during regenerative coast traveling. Background technique [0002] There is widely known a hybrid vehicle that includes an engine and an electric motor each functioning as a driving power source, and a transmission provided in drive wheels and a power transmission path between both the engine and the electric motor. The hybrid vehicle thus configured can run by appropriately switching to the engine drive mode or the motor drive mode. In the engine drive mode, the hybrid vehicle runs mainly using the drive force of the engine. In the motor drive mode, the hybrid vehicle travels by using only the electric motor as a drive power source. Also, during coasting running, so-called regenerative coasting running that regenerates the regenerative torque of the electric motor may be performed. During coasting, the hybrid vehicle t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/00B60W10/10B60W10/06B60W10/08B60L50/16
CPCY02T10/7077B60W20/00Y02T10/7241Y10S903/903Y02T10/6221B60W10/06B60W10/08B60W10/10B60W2510/244B60K6/48B60W10/11B60W10/26B60W30/18127B60W30/186B60W30/19B60W2710/083F16H63/50Y02T10/62
Inventor 佐藤俊杉村敏夫桑原清二堤贵彦南川幸毅
Owner TOYOTA JIDOSHA KK