Patent application number | Description | Published |
20090173066 | HYDRAULIC BRAKE ENERGY REGENERATION SYSTEM FOR ELECTRIC ENERGY STORAGE AND VEHICLE DRIVE ASSIST - A hydraulic drive system for storing and releasing hydraulic fluid includes a high pressure storage device, a low pressure storage device, a pump operating at a range of pump speeds for converting between mechanical energy and hydraulic energy, and a motor operating at a range of motor speeds for converting between hydraulic energy and mechanical energy. The pump and motor are both fluidly connected to the high and low pressure storage devices. The hydraulic drive system further includes a control valve fluidly connected to the high pressure storage device, the pump and the motor, the control valve being operable to selectively distribute high pressure fluid between the pump, motor and high pressure storage device. | 07-09-2009 |
20100228525 | DATA LOGGER FOR HYBRID VEHICLE - A data logging system includes a sensor for monitoring a parameter and a data logger. The data logger includes a first logging mode and a second logging mode. The first logging mode has a low-capacity logging mode adapted to collect data from the sensor at time intervals, identify a start of a data cycle when the parameter reaches a first limit, identify a stop of the data cycle when the parameter reaches a second limit, process the data collected between the start and stop of the data cycle, log the data processed, the data processed having less bytes than the data collected between the start and stop of the data cycle. The second logging mode is adapted to collect data from the sensor at time intervals and to log a portion of the data collected after receiving an event code. | 09-09-2010 |
20110203891 | TORQUE CONVERTER CONTROL FOR A VEHICLE - A method for controlling a transmission assembly includes providing a vehicle having a first power source and a second power source disposed in parallel with the first power source. The first power source includes a prime mover and a transmission assembly. The transmission assembly includes a torque converter coupled to the prime mover. The transmission assembly further includes a clutch that selectively engages the torque converter to a transmission of the transmission assembly. The second power source includes a pump-motor unit, a fluid reservoir and an energy storage unit. A torque value of the second power source is compared to a torque threshold value. The clutch of the transmission assembly is disengaged so that the torque converter of the transmission assembly is disengaged from the transmission of the transmission assembly when the torque value of the second power source is greater than or equal to the torque threshold value. | 08-25-2011 |
20130303331 | TORQUE CONVERTER CONTROL FOR A VEHICLE - A method for controlling a transmission assembly includes providing a vehicle having a first power source and a second power source disposed in parallel with the first power source. The first power source includes a prime mover and a transmission assembly. The transmission assembly includes a torque converter coupled to the prime mover. The transmission assembly further includes a clutch that selectively engages the torque converter to a transmission of the transmission assembly. The second power source includes a pump-motor unit, a fluid reservoir and an energy storage unit. A torque value of the second power source is compared to a torque threshold value. The clutch of the transmission assembly is disengaged so that the torque converter of the transmission assembly is disengaged from the transmission of the transmission assembly when the torque value of the second power source is greater than or equal to the torque threshold value. | 11-14-2013 |