Apparatus for monitoring and controlling charging of a battery for a hybrid or electric vehicle
First Claim
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1. Charge information system for an electric or hybrid vehicle having a vehicle battery, comprising:
- a battery charger;
a unit for determining charge condition of said battery;
an input unit for entering charging and operating parameters of the charging operation; and
a computing unit coupled to receive inputs from said battery charger and said unit for determining charge condition, as well as charging and operating parameters from said input unit, said computing unit comprising;
means for determining a desired charge Qdes as a function of the input charging parameters;
means for determining a charging diagram It for the course of a charging current I over time, based on the input charging parameters and an actual charge condition Qact ;
means for determining a required remaining charging time tR for the implementation of the charging operation, based on the selected charging diagram It ; and
means for controlling a display unit by means of a signal for the remaining charging time tR.
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Abstract
The invention relates to a charge information system to support the operator of an electric vehicle or hybrid vehicle, including the input of desired parameters for charging and operating the vehicle. The charge information system according to the invention comprises an input unit for putting the desired parameters into a computing unit which determines the required remaining charging time and displays it. Defining quantities are, among others, the charging efficiency or the desired range.
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Citations
15 Claims
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1. Charge information system for an electric or hybrid vehicle having a vehicle battery, comprising:
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a battery charger; a unit for determining charge condition of said battery; an input unit for entering charging and operating parameters of the charging operation; and a computing unit coupled to receive inputs from said battery charger and said unit for determining charge condition, as well as charging and operating parameters from said input unit, said computing unit comprising; means for determining a desired charge Qdes as a function of the input charging parameters; means for determining a charging diagram It for the course of a charging current I over time, based on the input charging parameters and an actual charge condition Qact ; means for determining a required remaining charging time tR for the implementation of the charging operation, based on the selected charging diagram It ; and means for controlling a display unit by means of a signal for the remaining charging time tR. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification