SAFETY DEVICE FOR A BATTERY CONTACTOR IN AN ELECTRIC VEHICLE
First Claim
1. A safety device (4) for a contactor (2) which is connected between a secondary battery and an electrical power supply system, the safety device comprising:
- at least one electronic evaluation unit (6) which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), andat least one safety switch (8) which can be driven by way of the electronic evaluation unit (6) and can be arranged in an electrical control circuit (7) of the contactor (2),wherein the electronic evaluation unit (6) is designed to receive at least one component-specific item of actual information (12) from the electrical component by means of the communication connection (5), to compare the received item of actual information (12) with at least one item of target information which is stored in the electronic evaluation unit (6), and to drive the safety switch (8) depending on a result of the comparison in such a way that said electronic evaluation unit closes the safety switch (8) when the item of actual information (12) corresponds to the item of target information, and opens the safety switch (8) when the item of actual information (12) does not correspond to the item of target information.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a safety device (4) for a contactor (2) connected between a secondary battery and an electrical power network, in particular of a motor vehicle that can be driven electrically, comprising at least one electronic evaluating unit (6), which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), and at least one safety switch (8), which can be controlled by means of the electronic evaluating unit (6) and which can be arranged in an electrical control circuit (7) of the contactor (2), wherein the electronic evaluating unit (6) is designed to receive at least one component-specific piece of actual information (12) from the electrical component via the communication connection (5), to compare the received piece of actual information (12) with at least one piece of target information stored in the electronic evaluating unit (6), and to control the safety switch (8) in dependence on a result of the comparison in such a way that the electronic evaluating unit closes the safety switch (8) if the piece of actual information (12) corresponds with the piece of target information and opens the safety switch (8) if the piece of actual information (12) does not correspond with the piece of target information.
5 Citations
9 Claims
-
1. A safety device (4) for a contactor (2) which is connected between a secondary battery and an electrical power supply system, the safety device comprising:
-
at least one electronic evaluation unit (6) which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), and at least one safety switch (8) which can be driven by way of the electronic evaluation unit (6) and can be arranged in an electrical control circuit (7) of the contactor (2), wherein the electronic evaluation unit (6) is designed to receive at least one component-specific item of actual information (12) from the electrical component by means of the communication connection (5), to compare the received item of actual information (12) with at least one item of target information which is stored in the electronic evaluation unit (6), and to drive the safety switch (8) depending on a result of the comparison in such a way that said electronic evaluation unit closes the safety switch (8) when the item of actual information (12) corresponds to the item of target information, and opens the safety switch (8) when the item of actual information (12) does not correspond to the item of target information. - View Dependent Claims (3, 4, 5)
-
-
2. A safety device (4) for a contactor (2) which is connected between a secondary battery and an electrical power supply system, the safety device comprising:
-
at least one electronic evaluation unit (6) which can be connected to at least one electrical component of the secondary battery by means of a communication connection (5), and at least one safety switch (8) which can be driven by way of the electronic evaluation unit (6) and can be arranged in a control line (10) of the contactor (2), which control line controls a control switch (9) which is arranged in an electrical control circuit (7) of the contactor (2), wherein the electronic evaluation unit (6) is designed to receive at least one component-specific item of actual information (12) from the electrical component, to compare the received item of actual information (12) with at least one item of target information which is stored in the electronic evaluation unit (6), and to drive the safety switch (8) depending on a result of the comparison in such a way that said electronic evaluation unit closes the safety switch (8) when the item of actual information (12) corresponds to the item of target information, and opens the safety switch (8) when the item of actual information (12) does not correspond to the item of target information.
-
-
6. A method for controlling a contactor (2) which is connected between a secondary battery and an electrical power supply system, the method comprising:
controlling the contactor in such a way that it can be closed by means of an electrical control circuit, which is associated with the contactor (2), exclusively when at least one component-specific item of actual information (12), which is associated with an electrical component of the secondary battery, corresponds to at least one item of target information which is stored in the contactor. - View Dependent Claims (7, 8, 9)
Specification