Method to supply an electric accessory of a motor vehicle comprising an electric battery to which said accessory is connected

摘要

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.

主权项

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; andb) 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.