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Onboard battery control device and control method

A control device and control method technology, applied in the direction of battery/fuel cell control device, control device, electrical control, etc., can solve the problem of discharging unpurified exhaust gas, etc., and achieve the effect of increasing the chargeable/dischargeable area

Active Publication Date: 2006-07-12
TOYOTA JIDOSHA KK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, in a state where the temperature of the catalyst is not sufficiently raised so that the catalyst cannot fully exert its purification capability, a certain amount of exhaust gas that cannot be purified by the catalyst that is warming up is generated.
The problem with this is that unpurified exhaust may be emitted

Method used

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  • Onboard battery control device and control method
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  • Onboard battery control device and control method

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Embodiment Construction

[0035] Embodiments of the present invention will be described below with reference to the drawings. Here, the same components are marked with the same reference symbols, given the same names, and have the same functions, so detailed description thereof will not be repeated.

[0036] Referring to Figure 1 and figure 2 , a power plant of a vehicle including a hybrid ECU (Electronic Control Unit) 112 realizing a battery control device according to an embodiment of the present invention is explained.

[0037] As shown in FIG. 1 , the power plant includes an engine 100, a motor generator 102, an inverter 106 connected to the motor generator 102, a battery 110 connected to the inverter 106, and a motor for controlling the motor 100 and the inverter 106. Hybrid ECU 112 . Engine 100 , motor generator 102 , inverter 106 and battery 110 are connected to hybrid ECU 112 .

[0038] The engine 100 burns fossil fuel such as gasoline to generate driving power while exhausting exhaust gas g...

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PUM

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Abstract

A hybrid ECU sets a charge power limit value W (IN) and a discharge power limit value W (OUT) that are respective limits of electric power to charge a battery and electric power to be discharged therefrom. The charge power limit value W (IN) and the discharge power limit value W (OUT) are set in such a manner that, in a case where warm-up of a catalyst is necessary, charging and discharging of the battery is permitted even if the battery temperature TB is higher as compared with that in a case where warm-up of the catalyst is unnecessary. Thus, if warm-up of the catalyst is necessary, the limitation on the charge / discharge electric power are relaxed with respect to the battery temperature so as to increase the chargeable / dischargeable temperature region for the battery. In this way, a motor generator can be driven while the battery temperature is high.

Description

technical field [0001] The invention relates to a control device and a control method for a vehicle storage battery (battery). More specifically, the present invention relates to a control device and a control method for a storage battery mounted on a vehicle on which an engine such as an internal combustion engine and an electric motor such as a rotary electric machine are mounted and driven by at least one of the engine and the electric motor Drive hard. Background technique [0002] A hybrid vehicle travels by driving force from at least one of an engine such as an internal combustion engine and an electric motor such as a rotary electric machine. The engine and the electric motor of the hybrid vehicle are selectively used according to the running state of the vehicle to effectively utilize the respective characteristics of the engine and the electric motor. Hybrid vehicles generally consume less fuel and emit less exhaust gas (exhaust gas) than vehicles that run with o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L11/12B60W20/00B60K6/445B60L11/18B60L50/15B60L50/16B60W10/06B60W10/26F02D41/02F02D41/10
CPCY02T10/6239B60L2240/445F02D41/10B60W10/26Y02T10/705Y02T10/26B60W2510/068Y02T10/7077B60L11/1851F02D41/0245Y02T10/7005B60K6/445F02D2041/026B60L58/10Y02T10/12Y02T10/62Y02T10/70Y02T10/7072
Inventor 石下晃生高桥秀典
Owner TOYOTA JIDOSHA KK
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