(US5703464-A)      The system includes several battery control modules (18) and a control unit (22), each configured to transmit and receive radio frequency signals comprising information relating to the operating parameters of batteries in a battery pack (10), and control commands for regulating the operating parameters of such batteries (10).    Each battery control module (18) is configured to monitor one or more operating parameters of a respecive battery (10) and to regulate one or more operating parameters according to a control system program in the control unit (22). Each battery control module (18) includes one or more sensing elements to measure one or more operating parameters of a respective battery (10), a radio frequency receiver, and a radio frequency transmitter.    ADVANTAGE -   Does not add weight to vehicle, is not vulnerable to battery corrosion, is easy and quick to install, does not require use of HV isolators, and optimises performance of battery pack.    (EP832391-A1)      The system includes several battery control modules (18) and a control unit (22), each configured to transmit and receive radio frequency signals comprising information relating to the operating parameters of batteries in a battery pack (10), and control commands for regulating the operating parameters of such batteries (10).    Each battery control module (18) is configured to monitor one or more operating parameters of a respecive battery (10) and to regulate one or more operating parameters according to a control system program in the control unit (22). Each battery control module (18) includes one or more sensing elements to measure one or more operating parameters of a respective battery (10), a radio frequency receiver, and a radio frequency transmitter.    ADVANTAGE -   Does not add weight to vehicle, is not vulnerable to battery corrosion, is easy and quick to install, does not require use of HV isolators, and optimises performance of battery pack.    (JP11509669-W)      The system includes several battery control modules (18) and a control unit (22), each configured to transmit and receive radio frequency signals comprising information relating to the operating parameters of batteries in a battery pack (10), and control commands for regulating the operating parameters of such batteries (10).    Each battery control module (18) is configured to monitor one or more operating parameters of a respecive battery (10) and to regulate one or more operating parameters according to a control system program in the control unit (22). Each battery control module (18) includes one or more sensing elements to measure one or more operating parameters of a respective battery (10), a radio frequency receiver, and a radio frequency transmitter.    ADVANTAGE -   Does not add weight to vehicle, is not vulnerable to battery corrosion, is easy and quick to install, does not require use of HV isolators, and optimises performance of battery pack.