Energy management control device for hybrid vehicle

a technology for energy management and hybrid vehicles, applied in the direction of gas pressure propulsion mounting, propulsion parts, transportation and packaging, etc., can solve the problems of ev start, failure to carry out idle power generation while the vehicle is stopped, failure to achieve idle power generation, etc., to secure the charge capacity for an ev start, the effect of expanding the battery use charge capacity rang

Active Publication Date: 2018-04-05
NISSAN MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention relates to a system that controls how much battery can be used during starting up on a hybrid car without being too full or draining its batteries quickly enough. This helps prevent damage from excessive battery usage while ensuring efficient operation of the car's electrical systems.

Problems solved by technology

The technical problem addressed in this patent is how to improve the performance of a hybrid electric vehicle's engine when starting up quickly without sacrificing power output.

Method used

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  • Energy management control device for hybrid vehicle
  • Energy management control device for hybrid vehicle
  • Energy management control device for hybrid vehicle

Examples

Experimental program
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first embodiment

[0022]The configuration is described first. The energy management control device for an electrically driven vehicle of the first embodiment is applied to a hybrid vehicle (one example of a hybrid vehicle), comprising, as drive system components, one engine, two motor / generators, and a multistage gear transmission having three engagement clutches. The “overall system configuration,” the “configuration of the hybrid vehicle control system,” the “configuration of the shift control system,” the “configuration of the gear shift stages and the shift schedule map,” and the “configuration of the energy management control process” will be separately described below, regarding the configuration of the energy management control device for an electrically driven vehicle in the first embodiment.

Overall System Configuration

[0023]FIG. 1 illustrates a drive system and a control system of a hybrid vehicle to which is applied the starting control device of the first embodiment. The overall system conf

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Abstract

An energy management control device for a hybrid vehicle has an energy management controller that suppresses an occurrence of a condition in which an EV start is not possible due to insufficient battery charge capacity when an engagement clutch fails. When the energy management controller has determined that one of the engagement clutches has failed that is used to carry out an EV start using a first motor generator as a drive source that receives electrical power from a high-power battery when starting the vehicle, energy management maps are used in energy management control, which have a usage SOC range that is broader than the usage SOC range of the normal energy management map, which is used during normal operation.

Description

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Claims

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Application Information

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Owner NISSAN MOTOR CO LTD
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