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March 25, 2011updated 08 Apr 2021 8:07am

US: Delphi introduces integrated seat based HVAC system

Delphi introduces new integrated seat based HVAC system

Delphi Automotive says its new seat-based heating, ventilation and air conditioning (HVAC) system simplifies the cab design process and minimizes equipment assembly while efficiently keeping passengers comfortable. 

The system is part of the E3 HVAC Seat, which combines Delphi’s Diavia HVAC application capability with the COBO group’s steering column, seat, lighting, electric and electronic devices. The E3 HVAC Seat will debut this week at COBO’s booth (No. S-16353 in the South Hall, 2nd Level) at the CONEXPO-CON/AGG 2011 exposition being held at the Las Vegas Convention Center March 22-26.

“Combining Delphi’s new HVAC system with the COBO seat provides equipment manufacturers the opportunity to keep operators comfortable while simplifying the overall cabin design and installation process,” said Roberto Grotti, managing director, Delphi Diavia.

Designed for medium-size vehicle or equipment cabins or small rooms, the E3 HVAC has a cooling capacity of 6.2 kW and a heating capacity of 5.8 kW. It can provide climate control for the cab only or for the cab and seat cushion by channeling air flow from the vents. By adjusting the vents, the operator can select the most comfortable cab temperature and keep the seat dry.

Air is cooled through an evaporator provided with an expansion valve and using the cooling gas from the AC system. Air is warmed using a heater containing the fluid coming from the endothermic motor. The air is circulated using an electric fan and the air flow is managed by an electronic voltage regulator PWM (pulse width modulator) allowing a linear voltage adjustment at the ends of the fan.

Since the seat and HVAC unit are fully integrated, plug and play installation is simple and design and assembly time are reduced. Additionally, all climate control functions are incorporated into the new electronic control board with CAN BUS interface, which has been specifically designed for industrial vehicle cabins. This new control unit — built in conformity with ISO 7637 and 2004/104/CE rules — is located inside the seat arm.

The E3-HVAC seat is available through COBO’s global sales network.

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