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Hybrid vehicle

A technology of hybrid electric vehicles and electric power, applied in hybrid electric vehicles, motor vehicles, power plants, etc., can solve the problems of changing the charging and discharging control of secondary batteries, and it is impossible to fully avoid the memory effect, so as to prevent the memory of secondary batteries effect of effect

Active Publication Date: 2017-02-15
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is impossible to sufficiently avoid the occurrence of the memory effect, so, as in the case of JP 2003-047108 A, there is a problem of changing the charge and discharge control of the secondary battery after the memory effect has occurred

Method used

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Embodiment Construction

[0028] Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the following description, the same reference numerals denote the same or corresponding parts in the drawings, and description thereof will not be repeated in principle.

[0029] figure 1 is a block diagram for showing the overall configuration of the hybrid vehicle 100 according to the embodiment of the present disclosure.

[0030] Such as figure 1 As shown, a hybrid vehicle 100 includes an engine 2 , a power split device 4 , motor generators 6 , 10 , a transmission gear 8 , a drive shaft 12 , and wheels 14 . The hybrid vehicle 100 further includes a secondary battery 16, power converters 18, 19, an electronic control unit (ECU) 25, a vehicle speed sensor 29, an accelerator pedal 30, a parking switch 32, a shift lever 34, a gear position sensor 36, and an IG switch 38.

[0031] The engine 2 is an internal combustion engine that outputs power by co...

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Abstract

A hybrid vehicle includes an electronic control unit. The electronic control unit is configured to a) control operation of the power generation mechanism such that a state of charge of the secondary battery is kept at a predetermined control target; b) calculate an estimated actual state of charge of the secondary battery based on an integrated current value and a state of charge decrease amount due to self-discharge of the secondary battery, the integrated current value being obtained by integrating an input current and an output current of the secondary battery; and c) when the estimated actual state of charge has decreased below a predetermined first lower limit state of charge, raise the control target.

Description

technical field [0001] The present disclosure relates to hybrid vehicles, and more particularly, to charge and discharge control of a secondary battery mounted on a hybrid vehicle during running of the hybrid vehicle. Background technique [0002] A hybrid vehicle can charge a secondary battery mounted on the vehicle by using power generation accompanying engine operation even during running. For this reason, as described in Japanese Patent Application Publication No. 2011-225079 (JP 2011-225079 A), charge and discharge of the secondary battery are controlled by performing forced discharge control or forced charge control so that the charge of the secondary battery The state of state (SOC) remains within a predetermined range. In particular, JP 2011-225079 A describes control for changing the control center SOC in response to the number of executions of forced charging control and the number of executions of forced discharging control. [0003] Japanese Patent Application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/18B60L11/12H01M10/44B60K6/28B60L50/15B60L50/16
CPCB60K6/28B60L50/15B60L58/13H01M10/44B60K6/445B60L2240/545B60L2240/547B60L2260/44B60W10/26B60W2510/242B60W20/13B60W20/15B60L58/14B60L58/15B60W2556/10Y02E60/10Y02T10/62Y02T10/70Y10S903/907B60L2210/10
Inventor 南浦启一
Owner TOYOTA JIDOSHA KK
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