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Hybrid Vehicle Controller And Control Method

A technology for a hybrid vehicle and a control device, which is applied in directions such as a hybrid vehicle, a power device, and a control device, can solve problems such as the inability to fully exert the exhaust gas purification effect, and achieve the effect of preventing the deterioration of exhaust gas properties.

Inactive Publication Date: 2012-02-01
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the catalyst temperature is higher than the activation temperature, etc., the exhaust gas purification effect cannot be fully exhibited without preheating.

Method used

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  • Hybrid Vehicle Controller And Control Method

Examples

Experimental program
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Embodiment Construction

[0043] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that, below, the same reference numerals are assigned to the same or corresponding parts in the drawings, and the description thereof will not be repeated in principle.

[0044] figure 1 It is a block diagram illustrating a configuration example of a hybrid vehicle 10 equipped with a control device according to an embodiment of the present invention. It should be noted that the present invention can be applied to hybrid vehicles of any configuration as long as the catalyst can be warmed up and the vehicle can run using electric power from the vehicle-mounted secondary battery during the catalyst warm-up period.

[0045] refer to figure 1 , the hybrid vehicle 10 includes drive wheels 12, a speed reducer 14, a drive shaft 16, an engine 100, a power split mechanism 200, a motor generator 300A (MG (1)) and a motor generator 300B (MG (2)), a stor...

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PUM

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Abstract

A charge / discharge power upper limit value is set by referencing different maps for a catalyst warm-up period and other period so as to limit charge / discharge of a main battery in accordance with increase of the battery temperature. As a result, during the catalyst warm-up period, a limit start temperature at which a limit of the charge / discharge power is started and a charge / discharge inhibit temperature at which the charge / discharge is inhibited are set in accordance with the characteristic of the main battery. During a period other than the catalyst warm-up period, the limit start temperature and the charge / discharge inhibit temperature are set lower than during the catalyst warm-up period.

Description

technical field [0001] The present invention relates to a control device and a control method for a hybrid vehicle, and more specifically, relates to charge and discharge control of an on-vehicle power storage device for smoothly executing catalyst warm-up of an engine. Background technique [0002] A vehicle equipped with an engine is generally provided with a catalyst (catalytic converter) for purifying exhaust gas from the engine. This catalyst removes emissions (HC, CO, NOx and other harmful substances) in the exhaust gas. However, if the temperature of the catalyst is equal to or higher than the activation temperature, the exhaust gas purification effect cannot be sufficiently exhibited without preheating. [0003] In a hybrid vehicle equipped with an engine and an electric motor as driving force sources, the engine is requested to be started according to the driving conditions. Perform catalyst warm-up. Furthermore, it is desirable to perform travel control that sup...

Claims

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Application Information

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IPC IPC(8): B60W10/26B60K6/445B60L11/14B60W20/00B60L50/16
CPCY02T10/6239B60L2240/445B60W10/26Y02T10/6217Y02T10/705B60L11/123B60W20/00Y02T90/14Y02T90/121B60L11/1857B60L11/14B60W2510/246Y02T10/7077B60W2510/068B60L11/1816Y02T10/7088Y02T10/7005B60K6/445Y02T10/92Y02T10/7072B60L53/14B60L50/61B60L50/16B60L58/16Y02T10/62Y02T10/70B60W2510/244B60W2530/12B60W20/13
Inventor 石下晃生
Owner TOYOTA JIDOSHA KK