BATTERY THERMAL MANAGEMENT SYSTEM
First Claim
1. A battery thermal management system for managing the temperature of a battery pack in a hybrid vehicle, comprising:
- (a) a battery pack;
(b) a fan having an air outlet; and
(c) a plenum having an inlet in fluid communication with the fan air outlet, and a supply air diffuser in fluid communication with the battery pack, the supply air diffuser having openings configured to deliver a substantially uniform air flow across the battery pack from an air flow supplied by the fan to the plenum.
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Accused Products
Abstract
Disclosed herein is a battery thermal management system for maintaining the temperature of a battery pack in a hybrid vehicle below a maximum operating temperature threshold. The system comprises a battery pack having a plurality of electronically linked cells and a supply air diffuser having a pattern of openings therein for diffusing exhausted air at a substantially uniform flow throughout the battery pack. The system further comprises sensors for monitoring the temperature of at least a portion of the cells, a fan comprising an inlet through which air is drawn in and an outlet in communication with at least the supply air diffuser, for exhausting air into the first diffuser to lower the temperature of the battery pack, and an electronic control unit in communication with the sensors and the fan for controlling operation of the fan based on temperature signals received from the sensors to maintain the temperature of the battery pack below a maximum operating temperature.
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Citations
19 Claims
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1. A battery thermal management system for managing the temperature of a battery pack in a hybrid vehicle, comprising:
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(a) a battery pack; (b) a fan having an air outlet; and (c) a plenum having an inlet in fluid communication with the fan air outlet, and a supply air diffuser in fluid communication with the battery pack, the supply air diffuser having openings configured to deliver a substantially uniform air flow across the battery pack from an air flow supplied by the fan to the plenum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computer readable memory having recorded thereon code for execution by an electronic control unit of a battery thermal management system, to carry out a method comprising:
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measuring the temperature of at least one module of a battery pack; and when the measured temperature is within a predefined range and increasing, reducing charge and discharging power limit of the battery pack by a prescribed amount. - View Dependent Claims (16, 17, 18, 19)
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Specification