Apparatus and method for controlling the temperature of a battery in a hybrid electric vehicle

• Main Authors: LARSSON JOHAN, MOUDEN GUY, LENNEVI JERKER, AXELSSON TOBIAS
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2012
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BASIC ELECTRIC ELEMENTS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TRANSPORTING; VEHICLES IN GENERAL

The present invention relates to a method for controlling the temperature of a traction battery in a hybrid vehicle, where said hybrid vehicle comprises an internal combustion engine and an electric motor for traction power, comprising the steps of: providing a first temperature regulating circuit for the internal combustion engine, providing a second temperature regulating circuit for the traction battery, heating the traction battery by an electrical heater provided in said second temperature regulating circuit in series with a pump, a radiator and said traction battery, transferring power to said heater via a DC/DC converter in said second temperature regulating circuit from the electrical motor, which electrical motor is driven by said internal combustion engine, while said battery is below a predetermined temperature interval.