| 摘要 |
The invention relates to a motor vehicle having an internal combustion engine and an exhaust gas system with an exhaust gas line by means of which exhaust gas from the internal combustion engine can be discharged, and an exhaust gas recirculation line by means of which exhaust gas from the exhaust gas line can be recirculated to an intake manifold of the internal combustion engine. In the exhaust gas recirculation line, there is an exhaust gas cooler which can move relative to the internal combustion engine. Due to the relative mobility, the exhaust gas cooler can be located at a distance from the internal combustion engine so that direct delivery of heat from the internal combustion engine into the exhaust gas cooler is avoided. This improves the cooling performance of the exhaust gas cooler and enables the use of less heat-resistant materials. The invention furthermore relates to a method for operating such a motor vehicle in which a partial flow cross section of the exhaust gas cooler is cleared or closed depending on the operating state of the motor vehicle. This enables adaptation of the cooling performance of the exhaust gas cooler to the operating state of the motor vehicle.
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