Nissan North America, Inc.

Nissan Technical Center North America, Inc.

Alaa Meram

Ronald Snowden Eisenhour

Antonio Prince

A method for controlling a vehicle cabin heating system includes setting a target temperature for a vehicle cabin interior space. The method also includes measuring current temperature within the vehicle cabin interior space at a location spaced apart from a first infrared heater and spaced apart from a target surface within the vehicle cabin interior space, the first infrared heater being aimed to heat the target surface. A surface temperature of the target surface is estimated based the current temperature. The first infrared heater is controlled such that the heater is turned on in response to the estimated surface temperature of the target surface falling below the target temperature by a predetermined amount, and the heater is turned off in response to the estimated surface temperature rising above the target temperature by the predetermined amount.

Vehicle cabin heating system

A vehicle cabin heating system is provided basically with an infrared heater, a temperature sensor and a controller. The infrared heater is aimed to heat a target surface in front of the infrared heater within a vehicle cabin interior space. The temperature sensor is disposed in front of the first infrared heater to detect a measured temperature in front of the first infrared heater. The controller is operatively coupled to the first infrared heater to selectively operate the first infrared heater to a target surface temperature within the vehicle cabin interior space whenever an estimated surface temperature of a target surface is determined based on the measured temperature by the temperature sensor falls below a prescribed temperature range below the target surface temperature.

A vehicle air conditioning system is disclosed that includes a compressor, a condenser, a front evaporator and a rear evaporator. The condenser is operably coupled to the compressor. The front evaporator is operably coupled to the condenser and the rear evaporator is operably coupled to the condenser. A high pressure tube operably couples the condenser to the rear evaporator and a low pressure tube operably couples the rear evaporator to the compressor. At least a portion of the high pressure tube and at least a portion of the low pressure tube are formed as a dual conduit section having side-by-side relationship for heat exchange therebetween.

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Sterling Heights, MI, United States of America

Alaa Meram