2results about How to "Improve vehicle performance" patented technology

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

The present application provides a vehicle dehumidifying device and a vehicle air conditioning system, wherein the vehicle dehumidifying device can be used as a humidity adjusting unit arranged in the vehicle air conditioning system and has good reliability. The vehicle air conditioning system comprises an air conditioning unit including an air inlet end and a blower, and a vehicle dehumidifying device as a humidity adjusting unit. The vehicle dehumidifying device has a dehumidifying element and is arranged on the upstream side of the blower, and an air inlet of the vehicle dehumidifying device is arranged on one side of an instrument panel separating a driving chamber and a vehicle cabin, so that only indoor air can pass through the dehumidifying element after being introduced into the air inlet of the vehicle dehumidifying device through the blower.