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Hybrid vehicle

A hybrid vehicle and power technology, applied in hybrid vehicles, motor vehicles, power units, etc., can solve problems such as difficulty in self-protection and motor load rate limitation

Inactive Publication Date: 2016-10-12
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the element temperature of the inverter becomes at least equal to the specified temperature, a limit is imposed on the load ratio of the motor
As a result, it becomes difficult to achieve self-protection driving

Method used

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Examples

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Embodiment Construction

[0017] The hybrid vehicle includes: an engine; a first electric motor capable of inputting / outputting power; a first inverter for driving the first electric motor; a planetary gear mechanism having three rotating elements respectively connected to As the output shaft of the engine, the rotation shaft of the first electric motor, and the drive shaft coupled to the axle; the second electric motor capable of inputting / outputting power to / from the driving shaft; the second inverter for driving the second electric motor an inverter; a battery for receiving / transmitting electric power from / to the first motor and the second motor via the first inverter and the second inverter; and a battery for cooling at least the first inverter and the second inverter cooler. The hybrid vehicle includes an electronic control unit configured to switch between performing a first limp home travel control and a second limp home travel control based on a first temperature difference, a second temperatur...

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Abstract

An electronic control unit included in a hybrid vehicle is configured to switch between first limp home travel control and second limp home travel control based on a first temperature difference, a second temperature difference, and a state of charge when abnormality occurs to a cooler. The first temperature difference is a value that is obtained by subtracting an element temperature of a first inverter from a first load rate limit temperature at which load rate limitation is applied to a first motor. The second temperature difference is a value that is obtained by subtracting an element temperature of a second inverter from a second load rate limit temperature at which the load rate limitation is applied to a second motor.

Description

technical field [0001] The present invention relates to a hybrid vehicle, and, in particular, to a hybrid vehicle comprising: an engine; a first electric motor capable of inputting / outputting power; a planetary gear mechanism of which three The rotation element is connected to three shafts which are an output shaft of the engine, a rotation shaft of the first electric motor, and a drive shaft coupled to an axle; and a second electric motor capable of input / output of power to / from the drive shaft. Background technique [0002] Conventionally, as this type of hybrid vehicle, there has been proposed a hybrid vehicle configured such that an engine and two electric motors are connected through a planetary gear mechanism and when the element temperature of the inverter becomes at least Limit the load rate of the motor when it is equal to the specified temperature (for example, see International Publication No. 2012 / 124073). In this hybrid vehicle, further increase in element temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W20/50B60L3/00B60L50/16
CPCB60L3/003B60W20/50B60K6/445B60W10/06B60W10/08B60W2510/244Y02T10/62Y02T10/72B60K6/26B60K6/365B60K6/50B60K1/00B60K6/28B60K2001/003B60W2510/087
Inventor 大庭智子加地雅哉
Owner TOYOTA JIDOSHA KK
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