Engine temperature management and control: Improvements and benefits linked to the replacement of map-controlled thermostat with a mechatronic part

In order to cope with new regulations and find a better compromise between fuel consumption, pollutant emissions and comfort, thermal management technologies are getting more complex. This is especially true when it requires replacing a basic passive solution or an open-loop control one with a mechatronic system. The latter enables the optimal setups to improve performance in cold/hot, transient/stable, partial/full load operation. A new Active Cooling Thermal-management valve concept has been developed to specifically replace map-controlled thermostat whilst keeping the same packaging and cost range. The system delivers a quick and precise close-loop control of the temperature to solve the main drawbacks of classic solutions such as a temperature-sensitive response time or hysteresis and temperature overshoots.