Patent ID: 6575258
Filing Date: 2003-06-10
Classification: B60K,B60L,B60W,F01P,Y02T

Abstract:
An apparatus for controlling the temperature of a battery in a vehicle having a liquid-cooled internal combustion engine, comprising:a liquid-cooled internal combustion engine having a coolant fluid jacket, said coolant fluid jacket having a jacket output port and a jacket input port; a first fluid path having an input connected to said jacket output port, an output, a first pipe section and a second pipe section between said input and said output; a first heat exchanger conductor thermally connected to said first pipe section; a first battery heat conductor thermally connected to said second pipe section; a first battery thermally connected to said first battery heat conductor; a first jacket structure thermally connected to said first heat exchanger conductor, having an input port connected to said output of said first fluid path, and an output port; a second jacket structure thermally connected to said first heat exchanger conductor, having an input port connected to said output port of said first jacket structure, a main output port, a bypass output, and a thermostatically controlled valve means for blocking fluid flow through said bypass port in response to a fluid temperature below a battery control temperature and for blocking fluid flow through said main output in response to a fluid temperature above said battery control temperature, said battery control temperature based on a battery target operating temperature; a third jacket structure thermally connected to said first heat exchanger conductor, having an input port connected to said main output port of said second jacket structure, and a main output port; a first bypass fluid path, having a first input port connected to said bypass output of said second jacket structure, a second input port connected to said main output port of said third jacket structure, and an output port; and a second fluid path, having an input connected to said output port of said first bypass fluid path, and an output connected to said input port of said fluid jacket.