High voltage output monitoring device and system for a power battery
First Claim
1. A high voltage output monitoring device for a power battery comprising a monitoring module, a control module and a central processor module, wherein the monitoring module monitors the high-voltage outputs, the pre-charge and the switching times of the relays;
- the control module controls the switching of the relay;
the central processor module analyzes and processes the monitoring signals, packs the relay state signals, and sends the packaged relay state signals to a battery management system, prognosticates the relay health condition and sends alarming signals to the battery management system, judges the pre-charge states, controls the switching ON or OFF of the high-voltage system, receives the control of the battery management system, and switches on or off the high-voltage system arbitrarily;
based on the acquired relay state signals, the high-voltage output monitoring portion of the monitoring module allows the battery management system be capable of monitoring the high voltage relay states in real-time, determining the high-voltage output states and judging the cause of the high-voltage output dysfunction according to the relay state signals;
by monitoring the battery terminal voltage and the output load terminal voltage during the pre-charge process, the pre-charge monitoring portion judges whether or not the pre-charge is successful.
1 Assignment
0 Petitions
Accused Products
Abstract
A high voltage output monitoring device and system of a power battery comprises a monitoring module, a control module and a central processor module, wherein the monitoring module carries out high voltage output monitoring, pre-charge monitoring and relay switching times monitoring; the control module controls a relay switch; the central processor module carries out processing and analysis of monitor signals, packs relay state signals, sends the packed relay state signals to a battery management system (8), prognosticates a relay health condition, sends alarming signals to the battery management system (8), judges the pre-charge state, controls a high voltage system to be opened or closed, receives the control of the battery management system, and forces the high voltage system to be opened or closed. By using the monitoring device of the present invention, it is feasible to prognosticate the lift of high voltage relay, send the relay health alarm signal in real time and to avoid the relay from causing hazard when it is damaged and cannot be closed; Furthermore, it is favorable for extending the life of battery by monitoring and controlling the pre-charge state of power battery.
16 Citations
7 Claims
-
1. A high voltage output monitoring device for a power battery comprising a monitoring module, a control module and a central processor module, wherein the monitoring module monitors the high-voltage outputs, the pre-charge and the switching times of the relays;
- the control module controls the switching of the relay;
the central processor module analyzes and processes the monitoring signals, packs the relay state signals, and sends the packaged relay state signals to a battery management system, prognosticates the relay health condition and sends alarming signals to the battery management system, judges the pre-charge states, controls the switching ON or OFF of the high-voltage system, receives the control of the battery management system, and switches on or off the high-voltage system arbitrarily;
based on the acquired relay state signals, the high-voltage output monitoring portion of the monitoring module allows the battery management system be capable of monitoring the high voltage relay states in real-time, determining the high-voltage output states and judging the cause of the high-voltage output dysfunction according to the relay state signals;
by monitoring the battery terminal voltage and the output load terminal voltage during the pre-charge process, the pre-charge monitoring portion judges whether or not the pre-charge is successful. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- the control module controls the switching of the relay;
Specification