Method to supply an electric accessory of a motor vehicle comprising an electric battery to which said accessory is connected
First Claim
1. A method of powering an electrical accessory of a motor vehicle including an electric battery to which said accessory is connected, comprising:
- determining simultaneously whether an electric battery is fully charged, whether the motor vehicle is connected electrically to an external electricity generator, and whether an accessory of the vehicle is switched on;
when the electric battery is fully charged, when the motor vehicle is connected electrically to the external electricity generator, and when the accessory of the vehicle is switched on simultaneously, determining a lower threshold characteristic value for a first charge characteristic of the battery;
performing the following steps in alternation while the vehicle is connected to the external electricity generator;
a) powering said accessory by the battery of the vehicle without being powered by the external electricity generator when said first charge characteristic is greater than said lower threshold value; and
b) powering said accessory and said battery by the external electricity generator, the external electricity generator being external to the motor vehicle when the first charge characteristic of the battery is less than said lower threshold value; and
stopping the performing of step a) and step b) when the accessory is deactivated.
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Accused Products
Abstract
A method of powering an electrical accessory of a motor vehicle including an electric battery to which the accessory is connected, the accessory and the battery also being connected electrically to an external electricity generator, wherein the following steps are performed in alternation: a) causing the accessory to be powered by the battery of the vehicle; and b) causing the accessory and the battery to be powered by the external electricity generator. A motor vehicle includes an electrical accessory connected to an electric battery of the vehicle, wherein powering of the accessory is controlled by the above method when the battery is charged and connected to an external generator.
20 Citations
19 Claims
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1. A method of powering an electrical accessory of a motor vehicle including an electric battery to which said accessory is connected, comprising:
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determining simultaneously whether an electric battery is fully charged, whether the motor vehicle is connected electrically to an external electricity generator, and whether an accessory of the vehicle is switched on; when the electric battery is fully charged, when the motor vehicle is connected electrically to the external electricity generator, and when the accessory of the vehicle is switched on simultaneously, determining a lower threshold characteristic value for a first charge characteristic of the battery; performing the following steps in alternation while the vehicle is connected to the external electricity generator; a) powering said accessory by the battery of the vehicle without being powered by the external electricity generator when said first charge characteristic is greater than said lower threshold value; and b) powering said accessory and said battery by the external electricity generator, the external electricity generator being external to the motor vehicle when the first charge characteristic of the battery is less than said lower threshold value; and
stopping the performing of step a) and step b) when the accessory is deactivated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19)
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18. A motor vehicle, comprising:
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an electric battery including a computer configured to output a first signal indicating whether the electric battery is fully charged, a second signal indicating whether the motor vehicle is connected electrically to an external electricity generator, and a third signal indicating whether an electrical accessory of the vehicle is switched on; the electrical accessory connected to the electric battery of said vehicle; and a controller configured to receive the first, second, and third signals from the electric battery, configured to determine a lower threshold characteristic value for a first charge characteristic of the batter, when the first signal indicates that the electric battery is fully charged, when the second signal indicates that the motor vehicle is connected electrically to the external electricity generator, and when the third signal indicates that the electrical accessory of the vehicle is switched on simultaneously, and configured to control powering of said accessory while the vehicle is connected to the external electricity generator by powering said accessory by the electric battery of the vehicle without being powered by the external electricity generator when said first charge characteristic is greater than said lower threshold value, and powering said accessory and said electric battery by the external electricity generator, when the electric battery is charged and connected to an external generator that is external to the motor vehicle when the first charge characteristic of the electric battery is less than said lower threshold value, wherein the controller is configured to stop the control of the powering of the accessory when the accessory is deactivated.
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Specification