Hybrid vehicle control system and method
First Claim
1. A hybrid vehicle control system characterized in that in a storage battery control system for a hybrid vehicle comprising a plurality of storage batteries connected in parallel for supplying power to electric loads including a drive motor in said hybrid vehicle, allowable charge state range setting means for setting an allowable charge state range for said storage batteries, charge and discharge control means for controlling charge and discharge between said storage batteries and said electric loads in said vehicle within said allowable charge state range, storage battery abnormality detecting means for detecting an abnormality in said storage batteries, a plurality of switching means for connecting or separating said plurality of storage batteries respectively from said electric loads in said vehicle, and faulty storage battery separating means, when said storage battery abnormality detecting means detects an abnormality in any of said storage batteries connected in parallel, for separating said switching means corresponding to said faulty storage battery, wherein allowable charge state range changing means for changing high said allowable charge state range of said storage batteries preset in said allowable charge state range setting means when separating said faulty storage battery is installed.
1 Assignment
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Accused Products
Abstract
When detecting an abnormality in some storage batteries, the hybrid vehicle control system separates the faulty storage batteries and leads the sound storage batteries to a high SOC.
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Citations
20 Claims
- 1. A hybrid vehicle control system characterized in that in a storage battery control system for a hybrid vehicle comprising a plurality of storage batteries connected in parallel for supplying power to electric loads including a drive motor in said hybrid vehicle, allowable charge state range setting means for setting an allowable charge state range for said storage batteries, charge and discharge control means for controlling charge and discharge between said storage batteries and said electric loads in said vehicle within said allowable charge state range, storage battery abnormality detecting means for detecting an abnormality in said storage batteries, a plurality of switching means for connecting or separating said plurality of storage batteries respectively from said electric loads in said vehicle, and faulty storage battery separating means, when said storage battery abnormality detecting means detects an abnormality in any of said storage batteries connected in parallel, for separating said switching means corresponding to said faulty storage battery, wherein allowable charge state range changing means for changing high said allowable charge state range of said storage batteries preset in said allowable charge state range setting means when separating said faulty storage battery is installed.
- 12. A hybrid vehicle control system characterized in that in a storage battery control system for a hybrid vehicle comprising a plurality of storage batteries connected in parallel for supplying power to electric loads including a drive motor in said hybrid vehicle, allowable charge state range setting means for setting an allowable charge state range for said storage batteries, charge and discharge control means for controlling charge and discharge between said storage batteries and said electric loads in said vehicle within said allowable charge state range, engine stop means for stopping an engine when said vehicle stops for a predetermined period of time, storage battery abnormality detecting means for detecting an abnormality in said storage batteries, a plurality of switching means for connecting or separating said plurality of storage batteries respectively from said electric loads in said vehicle, and faulty storage battery separating means, when said storage battery abnormality detecting means detects an abnormality in any of said storage batteries connected in parallel, for separating said switching means corresponding to said faulty storage battery, an ISS prohibiting means for prohibiting an operation of said engine stop means when separating said faulty storage battery is provided.
- 17. A hybrid vehicle control method comprising a step of setting an allowable charge state range for a plurality of storage batteries connected in parallel for supplying power to electric loads including a drive motor in said hybrid vehicle, a step of controlling charge and discharge between said storage batteries and said electric loads in said vehicle within said allowable charge state range, a step of detecting an abnormality in said storage batteries, a step, when detecting an abnormality in any of said storage batteries connected in parallel, of separating said faulty storage battery from said electric loads, and a step, when separating said faulty storage battery, of changing high said preset allowable charge state range of said storage batteries.
Specification