Method and device for stabilizing an on-board electrical system of a vehicle electrical system
First Claim
1. A method for stabilizing an on-board electrical system of a vehicle electrical system, including at least one battery, at least one rotational inertial load driven by an electric motor and a device configured to detect a state that is critical to the on-board electrical system, comprising:
- detecting a critical voltage state of the on-board electrical system by the device;
in response to the detection of the critical voltage state and during the critical voltage state, driving the rotational inertial load by the electric motor such that the rotational inertial load stores rotational kinetic energy; and
during the critical voltage state of the on-board electrical system and during a subsequent voltage drop of the on-board electrical system, driving the electric motor by the stored rotational kinetic energy of the rotational inertial load to generate electrical energy and supply the electrical energy to the on-board electrical system.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle electrical system includes at least one battery, at least one fan and a device for detecting a critical state in the vehicle electrical system. The fan is activated when a critical state of the vehicle electrical system is detected. In this context, use is made of the fan'"'"'s ability to store mechanical energy in the form of inertias. The fan operates in a regenerative manner and electrically feeds the mechanically stored energy back into the on-board electrical system.
-
Citations
34 Claims
-
1. A method for stabilizing an on-board electrical system of a vehicle electrical system, including at least one battery, at least one rotational inertial load driven by an electric motor and a device configured to detect a state that is critical to the on-board electrical system, comprising:
-
detecting a critical voltage state of the on-board electrical system by the device; in response to the detection of the critical voltage state and during the critical voltage state, driving the rotational inertial load by the electric motor such that the rotational inertial load stores rotational kinetic energy; and during the critical voltage state of the on-board electrical system and during a subsequent voltage drop of the on-board electrical system, driving the electric motor by the stored rotational kinetic energy of the rotational inertial load to generate electrical energy and supply the electrical energy to the on-board electrical system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
-
-
15. A device for stabilizing an on-board electrical system of a vehicle electrical system, comprising:
-
at least one battery; at least one rotational inertial load driven by an electric motor in response to detection of a critical voltage state of the on-board electrical system and during the critical voltage state of the on-board electrical system to store rotational kinetic energy by the rotational inertial load; and a device configured to detect a critical voltage state of the on-board electrical system, the device configured to switch in, during the critical voltage state of the on-board electrical system during a subsequent voltage drop of the on-board electrical system, the rotational inertial load driven by the electric motor to drive the electrical motor by the stored rotational kinetic energy of the rotational inertial load to generate electrical energy and supply the electrical energy to the on board electrical system during a subsequent voltage drop of the on-board electrical system. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A device for stabilizing an on-board electrical system of a vehicle electrical system, comprising:
-
at least one battery; at least one rotational inertial load driven by an electric motor in response to detection of a critical voltage state of the on-board electrical system and during the critical voltage state of the on-board electrical system o store rotational kinetic energy by the rotational inertial load; and means for detecting a critical state of the on-board electrical system and for switching in, during the critical voltage state of the on-board electrical system and during a subsequent voltage drop of the on-board electrical system, the rotational inertial load driven by the electric motor to drive the electric motor by the stored rotational kinetic energy of the rotational inertial load to generate electrical energy and supply the electrical energy to the on-board electrical system during a subsequent voltage drop of the on-board electrical system. - View Dependent Claims (25, 26, 27, 28)
-
-
29. A method for stabilizing an on-board electrical system of a vehicle electrical system, comprising:
-
detecting a critical voltage state of the on-board electrical system; in response to the detection of the critical voltage state and during the critical voltage state, driving a rotational inertial load by an electric motor, the rotational inertial load driven at a rotational speed based on a vehicle electrical voltage, rotation of the rotational inertial load storing rotational kinetic energy; generating electrical energy by continued rotation of the rotational inertial load due to the stored rotational kinetic energy after a voltage drop in the on-board electrical system and during the critical voltage state of the on-board electrical system; and supplying the electrical energy generated in the generating step to the on-board electrical system during the critical voltage state of the on-board electrical system. - View Dependent Claims (30, 31)
-
-
32. A method for stabilizing an on-board electrical system of a vehicle electrical system, including at least one battery, a generator, at least one electrical load having a rotating mass and drivable by an electrical motor, at least one high current load, and a device configured to detect a state that is critical for the on-board electrical system, comprising:
-
detecting a critical state of the on-board electrical system; in response to the detection of the critical state and during the critical voltage state, activating the electrical load having the rotating mass by driving the electrical motor; during the critical state of the on-board electrical system, storing kinetic energy by the electrical load inducing back the stored energy as electrical energy to the electrical system if the high current load is switched on. - View Dependent Claims (33, 34)
-
Specification