Air conditioning system for the passenger compartment of a motor vehicle

• US 6,736,327 B1
• Filed: 05/15/2002
• Issued: 05/18/2004
• Est. Priority Date: 09/01/1999
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Munz, Juergen, Hersel, Walter, Eisenhardt, Harald, Weible, Reinhold, Falliano, Rolf
• Primary Examiner(s): WAYNER, WILLIAM E
• Application Number:
  US10/069,856
• Time in Patent Office: 734 Days
• Field of Search: 236/49.3, 236/78.R, 236/94, 165/43, 165/41, 621/26
• US Class Current: 236/51
• CPC Class Codes: B60H 1/00507 Details, e.g. mounting arrangements, desaeration devices B60H1/32 takes precedence

Abstract

The invention relates to a climate control system for the interior of a motor vehicle, having a blower regulator, heating control unit or brushless blower motor, as well as function components such as operating elements, sensors, clocking valves and adjusting drive mechanisms, which are connected to one another and to the vehicle battery via connecting lines and to which the information required to operate the blower regulator, heating control unit or brushless blower motor are transmitted. The cabling and the control/regulation are minimized and simplified by providing that the blower regulator, the heating control unit, or the brushless blower motor is combined with the function components to make a pre-wired climate control unit, to which the supply voltage of the vehicle battery; that the blower regulator, the heating control unit, or the brushless blower motor is designed in bus-capable fashion with a microcomputer, which communicates via a bus interface with a climate control operating device supplied by the supply voltage; and that the information required for operating the climate control apparatus can be transmitted between the climate control operating device and microcomputer as part of a bus protocol on the bus interface.

Claims

1. A climate control system for an interior of a motor vehicle, said climate control system comprising a climate control operating device (KBG);

a blower regulator (GR), heating control unit or brushless blower motor operated by the climate control operating device (KBG) and function components (Fü

, TV, VA), which are connected to one another and to a supply voltage (Ubatt) via connecting lines (B, CL) and to which information required to operate the blower regulator (GR), heating control unit or brushless blower motor is transmitted;

wherein the blower regulator (GR), heating control unit or brushless blower motor and the function components are combined to form a pre-wired climate control unit (KE), which is connected with the supply voltage (Ubatt) for supplying the blower regulator, heating control unit or brushless blower motor and the function components with the supply voltage (Ubatt);

wherein the blower regulator (GR), heating control unit or brushless blower motor is designed in bus-capable fashion with a microcomputer (M); and

wherein said microcomputer communicates with the climate control operating device (KBG) via a bus interface so that said information required for operation is transmitted between said climate control operating device (KBG) and said microcomputer as part of a bus protocol via said bus interface.

2. The climate control system as defined in claim 1, wherein said bus interface is a two-wire bus (B).

3. The climate control system as defined in claim 1, wherein said microcomputer (M) of the blower regulator (GR), heating control unit or brushless blower motor reports diagnostic data, as part of the bus protocol, back to the climate control operating device (KBG).

4. The climate control system as defined in claim 1, wherein said function components include non-bus-capable components and information entities present in the climate control unit (KE) from the non-bus-capable components are processed by said microcomputer and made available as part of the bus protocol.

5. The climate control system as defined in claim 1, wherein said function components include bus-capable components, and further comprising means for connecting and disconnecting said bus-capable components from said supply voltage (Ubatt), according to need, in order to reduce idle current consumption.

6. The climate control system as defined in claim 1, wherein said bus protocol is standardized and includes data for mass-production outffitting of said function components.

7. The climate control system as defined in claim 1, wherein said climate control unit is switched on via a three-wire plug connector (TRE).

8. The climate control system as defined in claim 1, wherein said function components comprise non-bus-capable sensors (Fü

), non-bus-capable clocking valves (TV) and bus-capable adjusting drive mechanism (VA).