| 摘要 |
Method for improving the overall efficiency of a hybrid drive comprising as the power sources at least one internal combustion engine and at least one electric motor, by recovering exhaust gas energy by means of at least one exhaust gas turbo-generator, wherein the exhaust gas energy produced while the internal combustion engine is running is used to generate electrical energy, such that without further energy supply an additional energy potential is available for use by the electric motor of said hybrid drive, thereby improving said method to allow a significant increase in overall efficiency, in particular in the partial load region of said internal combustion engine. Therefore, to increase the recovery potential of exhaust gas energy, a negative pressure is generated, relative to the ambient pressure, in the waste gas duct behind the last stage of said exhaust gas turbo-generator.
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