Patent ID: 7976285
Filing Date: 2011-07-12
Classification: B60T

Abstract:
1. A method of charging a compressed air storage tank for a vehicle so that a detected pressure in the storage tank increases from a first pressure to a second pressure, said method comprising: determining the first pressure according to a first detected vehicle engine load, wherein the first pressure is in a range from a minimum low-limit pressure to a maximum low-limit pressure, wherein determining the first pressure comprises: starting a charge cycle when the pressure detected in the storage tank is at least as low as the first pressure; charging the compressed air storage tank to increase the detected pressure from the maximum low-limit pressure to a minimum high-limit pressure; determining the second pressure according to a second detected vehicle engine load, wherein the second pressure is in a range from the minimum high-limit pressure to a maximum high-limit pressure; and stopping the charge cycle when the pressure detected in the storage tank is at least as high as the second pressure.