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Heating control system for vehicle

A heating control and vehicle technology, applied in the direction of coolant flow control, control devices, vehicle components, etc., can solve problems such as short time and inability to finely control

Inactive Publication Date: 2007-04-18
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the control only switches between operation that changes the engine operating point and operation that does not change the engine operating point
Therefore, fine control cannot be performed based on the difference between the cooling water temperature and the preset temperature, and the time required for the engine cooling water temperature to reach the target value cannot be made short enough

Method used

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  • Heating control system for vehicle
  • Heating control system for vehicle
  • Heating control system for vehicle

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Embodiment Construction

[0030] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Here, similar components are denoted by similar reference numerals, and thus description thereof will not be repeated.

[0031] 1, a hybrid vehicle 100 having a heating control system of the present invention includes an engine 10, a battery 20, an inverter 30, wheels 40a, a transaxle 50, an electric control unit (ECU) 90, a sunlight sensor 92, an outside air temperature Sensor 94 , room temperature sensor 96 , water temperature sensor 98 and air conditioner 110 .

[0032] The engine 10 uses, as an energy source, heat generated by burning fuel such as gasoline to generate driving force for the wheels 40a. The battery 20 supplies DC power to the power line 51 . The battery 20 generally consists of rechargeable storage batteries (packs), such as nickel metal hydride storage batteries and lithium ion storage batteries.

[0033] The inverter 30 converts DC ...

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PUM

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Abstract

A hybrid vehicle can be driven using both of respective driving forces from an engine and a motor. A heating mechanism of an air conditioning apparatus uses thermal energy from cooling water of the engine to heat the interior of a passenger compartment. An ECU takes into consideration engine efficiency from the standpoint of fuel economy enhancement to primarily determine the driving force share ratio between the engine and the motor. Further, the ECU calculates a preset temperature corresponding to a cooling water temperature necessary for desired heating as well as a control target temperature in which the preset temperature is reflected, and corrects the primarily determined driving force share ratio to increase the share of the driving force of the engine by an amount according to a deviation between the cooling water temperature measured by a water temperature sensor and the control target temperature. Heating performance can thus be ensured promptly without deterioration of fuel economy.

Description

technical field [0001] The present invention relates to heating control systems for vehicles. Specifically, the present invention relates to a heating control system applied to a vehicle having an air conditioner that uses heat energy derived from cooling water of an internal combustion engine for heating. Background technique [0002] Recently, a hybrid vehicle has been developed that has an internal combustion engine that generates driving force using thermal energy generated by burning fuel such as gasoline, and an electric motor that generates driving force using electrical energy. Even when the engine is stopped, the hybrid vehicle can run by driving the electric motor with electric power supplied from a battery that is pre-charged or charged with electric power generated by the engine while the vehicle is running. [0003] When the hybrid vehicle is operated using driving force from the engine, the electric motor is driven in an auxiliary manner to enhance combustion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60K6/04B60H1/08B60H1/06B60H1/22B60L50/16F01P7/16
CPCY02T10/6239B60W2510/0676Y02T10/7241Y02T10/7077B60H1/00764B60H2001/00992B60H1/004B60L2240/445B60L2240/34B60K6/445B60H2001/00733Y02T10/62Y02T10/72Y02T10/7072
Inventor 渡边秀人清水泰生
Owner TOYOTA JIDOSHA KK
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