Motor vehicle with an air-conditioning system
First Claim
1. A motor vehicle, comprising a combustion engine with an electronic engine-management device and further comprising an air-conditioning system with a compressor and with an air-conditioning control device using characteristic data fields;
- wherein the compressor has reciprocating pistons whose displacement stroke is adjustable, a drive chamber receiving fluid under pressure, and at least one control valve; and
wherein the piston stroke is adjusted by controlling the fluid pressure in the drive chamber by means of the at least one control valve, wherein further the electronic engine-management device has direct access to and priority control over said adjustment of the piston stroke and, by virtue of said priority control, the electronic engine management device takes precedence over the air-conditioning control device in controlling said adjustment of the piston stroke.
1 Assignment
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Accused Products
Abstract
In a motor vehicle with a combustion engine, an electronic engine-management device, and an air-conditioning system with an air-conditioning control device, the air-conditioning compressor has reciprocating pistons whose displacement stroke is adjustable through one or more control valves. The electronic engine-management device has direct access to and priority control over the adjustment of the piston stroke, so that the electronic engine management device takes precedence over the air-conditioning control device in controlling the adjustment of the piston stroke.
11 Citations
10 Claims
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1. A motor vehicle, comprising a combustion engine with an electronic engine-management device and further comprising an air-conditioning system with a compressor and with an air-conditioning control device using characteristic data fields;
- wherein the compressor has reciprocating pistons whose displacement stroke is adjustable, a drive chamber receiving fluid under pressure, and at least one control valve; and
wherein the piston stroke is adjusted by controlling the fluid pressure in the drive chamber by means of the at least one control valve, wherein further the electronic engine-management device has direct access to and priority control over said adjustment of the piston stroke and, by virtue of said priority control, the electronic engine management device takes precedence over the air-conditioning control device in controlling said adjustment of the piston stroke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- wherein the compressor has reciprocating pistons whose displacement stroke is adjustable, a drive chamber receiving fluid under pressure, and at least one control valve; and
Specification