Dual battery switch circuit
First Claim
1. An electrical power control system for a motor vehicle of the type wherein electrical power is used for motor ignition, and which system comprises a primary battery and a secondary battery, comprising:
- a starter which connects the primary battery to a starter motor to start the vehicle when the starter is energized;
a starter switch operatively connected with the starter, the starter switch being configured to cause the starter to connect the primary battery to the starter motor when the starter switch is actuated;
an electrically-actuable switch, operatively connected with the starter and the secondary battery so that, when the electrically-actuable switch is closed, the starter connects the secondary battery to the starter motor to draw additional power for starting the vehicle; and
a controller connected to the electrically-actuable switch and the starter switch, which controller senses closure of the starter switch and closes the electrically-actuable switch if the starter switch has been previously actuated one or more times within a predetermined time period.
2 Assignments
0 Petitions
Accused Products
Abstract
A dual-battery switch circuit associated with a load is provided. The switch circuit includes a primary battery, a secondary battery, a circuit disposed to apply energy from the primary battery to the load, and a controller which disposed to sense attempts to apply energy to the load. The controller is configured to couple the secondary battery to the primary battery with respect to the load when a predetermined number of attempts to apply energy to the load occur within a predetermined time period after a first attempt. Alternatively, a controller is provided which couples the secondary battery to the primary battery with respect to the load when an attempt is made to apply energy to the load and the temperature is below a predetermined level.
111 Citations
10 Claims
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1. An electrical power control system for a motor vehicle of the type wherein electrical power is used for motor ignition, and which system comprises a primary battery and a secondary battery, comprising:
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a starter which connects the primary battery to a starter motor to start the vehicle when the starter is energized; a starter switch operatively connected with the starter, the starter switch being configured to cause the starter to connect the primary battery to the starter motor when the starter switch is actuated; an electrically-actuable switch, operatively connected with the starter and the secondary battery so that, when the electrically-actuable switch is closed, the starter connects the secondary battery to the starter motor to draw additional power for starting the vehicle; and a controller connected to the electrically-actuable switch and the starter switch, which controller senses closure of the starter switch and closes the electrically-actuable switch if the starter switch has been previously actuated one or more times within a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrical power control system for a motor vehicle of the type wherein electrical power is used for motor ignition, and which system comprises a primary battery and a secondary battery, comprising:
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a starter which connects the primary battery to a starter motor to start the vehicle; a starter switch, operatively connected to the starter, which causes the starter to connect the primary battery to the starter motor when the starter switch is closed; an electrically-actuable switch operatively connected with the secondary battery and the starter so that, when the electrically-actuable switch is closed, the starter can connect the secondary battery to the starter motor to draw additional power for starting the vehicle; and a controller connected to the electrically-actuable switch and the starter switch, which controller comprises a temperature sensing circuit that causes the electrically-actuable switch to be closed during starting if the temperature sensed by the temperature sensing circuit is below a predetermined level.
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Specification