Device for controlling operation of a vehicle battery
First Claim
1. Device for controlling the operation of a vehicle battery, comprising:
- a connection each for the battery, a vehicle electrical system, a ground, and a generator of the vehicle;
and first and second current paths for connection of the battery connection to the vehicle electrical system connection, wherein the first current path allows current to flow in both directions between the battery connection and the vehicle electrical system connection and contains a switch which is closed only when voltage at the generator connection is less than a predetermined value; and
wherein the second current path allows a charging current to flow from the vehicle electrical system connection to the battery connection.
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Accused Products
Abstract
A device for controlling the operation of a vehicle battery exhibits two current paths for connecting the battery to the vehicle electrical system. Here, the first current path allows current to flow in both directions and the second current path only allows a charging current to flow from the vehicle electrical system to the battery. In addition, the first current path contains a switch which is only closed when the voltage at the generator connection is less than a predetermined value. Apart from this, a measuring device which measures a change in the state of charge of the battery, a storage device which stores the instantaneous state of charge of the battery, and a checking device which checks a predetermined electrical criterion for the maximum attainable state of charge of the battery, are provided. The instantaneous state of charge and the attainment of the maximum attainable state of charge are indicated to the user of the vehicle by an indicating device which also provides information about the minimum possible starting temperature in the instantaneous state of the battery.
8 Citations
14 Claims
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1. Device for controlling the operation of a vehicle battery, comprising:
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a connection each for the battery, a vehicle electrical system, a ground, and a generator of the vehicle;
and first and second current paths for connection of the battery connection to the vehicle electrical system connection, wherein the first current path allows current to flow in both directions between the battery connection and the vehicle electrical system connection and contains a switch which is closed only when voltage at the generator connection is less than a predetermined value; and
wherein the second current path allows a charging current to flow from the vehicle electrical system connection to the battery connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification