LARGE ELECTRIC VEHICLE POWER STRUCTURE AND ALTERNATING-HIBERNATION BATTERY MANAGEMENT AND CONTROL METHOD THEREOF

摘要

An alternating-hibernation battery management and control method for a power structure of a large electric vehicle is provided. The power structure includes a vehicular computer with a sorting controller, plural configuration-variable series-type battery boxes in parallel connection and a driving device. Each configuration-variable series-type battery box includes plural battery modules in series connection. The method includes the following steps. Firstly, the vehicular computer calculates a required number of battery modules and a required number of configuration-variable series-type battery boxes. Then, the vehicular computer performs a temperature protection process. Then, the sorting controller calculates module scores of all battery modules, and generates a battery module sorting result. Then, the sorting controller enables the required number of battery modules according to the required number of battery modules and the battery module sorting result. Then, the sorting controller calculates a battery box score and generates a battery box sorting result. Afterwards, the sorting controller controls at least one configuration-variable series-type battery box in the last rank of the battery box sorting result to be in a hibernation mode.

主权项

1. An alternating-hibernation battery management and control method for a power structure of a large electric vehicle, the power structure of the electric vehicle comprising a vehicular computer with a sorting controller, plural configuration-variable series-type battery boxes in parallel connection and a driving device, each of the plural configuration-variable series-type battery boxes comprising plural battery modules in series connection, the alternating-hibernation battery management and control method comprising steps of:
(a) the vehicular computer calculating a required number of battery modules and a required number of configuration-variable series-type battery boxes according to a vehicle-driving demand of the driving device; (b) the vehicular computer performing a temperature protection process, so that the battery module with a higher temperature is marked as an unavailable battery module; (c) the sorting controller calculating module scores of all battery modules, and generating a battery module sorting result of each configuration-variable series-type battery box; (d) the sorting controller enabling the required number of battery modules in each configuration-variable series-type battery box according to the required number of battery modules and the battery module sorting result of each configuration-variable series-type battery box; (e) the sorting controller calculating a battery box score of each configuration-variable series-type battery box according to the module scores of the enabled battery modules in each configuration-variable series-type battery box, and generating a battery box sorting result according to the battery box score; and (f) the sorting controller controlling at least one configuration-variable series-type battery box in the last rank of the battery box sorting result to be in a hibernation mode.