Abstract: Disclosed herein are improved methods for recycling used engine oil (UEO). The method includes steps of, mixing UEO, a superplasticizer, and water to give a suspension; mixing aggregates, ordinary Portland cement (OPC), fly ash, silicate fume, and the water to give a first mixture; adding the suspension to the first mixture to give a second mixture; and molding and curing the second mixture into a concrete. The thus produced concrete contains up to 5% of UEO (by weight of total cementitious material) and exhibits comparable compressive properties as to that of ordinary concrete.

Abstract: A chiller system includes an intercooler configured to cool compressed charge air received from a charger, a low temperature cooling circuit fluidly coupled to the intercooler, and an air conditioner circuit circulating a refrigerant and having a primary circuit and a bypass circuit. The primary circuit includes a compressor, a condenser, and an evaporator. The bypass circuit includes a conduit that bypasses the evaporator, and a chiller shut off valve is configured to selectively prevent refrigerant from flowing through the bypass circuit. A chiller is thermally coupled to the low temperature cooling circuit and the bypass circuit. A controller is in signal communication with the chiller shut off valve. The controller is programmed to, upon receiving a signal indicating a driver has manually selected the vehicle to operate in a racing mode, open the chiller shut off valve to provide increased cooling to the intercooler and the compressed charge air.

Abstract: A method of minimizing overall power consumption of a vehicle cooling system includes performing a hardware selection phase, performing an actuator position selection phase, and configuring operation of selected hardware components of the vehicle cooling system at a selected actuator position combination when the vehicle is operating in a predefined driving condition.

Abstract: A method of minimizing overall power consumption of a vehicle cooling system includes performing a hardware selection phase, performing an actuator position selection phase, and configuring operation of selected hardware components of the vehicle cooling system at a selected actuator position combination when the vehicle is operating in a predefined driving condition.

Abstract: A chiller system includes an intercooler configured to cool compressed charge air received from a charger, a low temperature cooling circuit fluidly coupled to the intercooler, and an air conditioner circuit circulating a refrigerant and having a primary circuit and a bypass circuit. The primary circuit includes a compressor, a condenser, and an evaporator. The bypass circuit includes a conduit that bypasses the evaporator, and a chiller shut off valve is configured to selectively prevent refrigerant from flowing through the bypass circuit. A chiller is thermally coupled to the low temperature cooling circuit and the bypass circuit. A controller is in signal communication with the chiller shut off valve. The controller is programmed to, upon receiving a signal indicating a driver has manually selected the vehicle to operate in a racing mode, open the chiller shut off valve to provide increased cooling to the intercooler and the compressed charge air.

Abstract: A chiller system includes an intercooler configured to cool compressed charge air received from a turbocharger or a supercharger; a low temperature cooling circuit fluidly coupled to the intercooler, the low temperature cooling circuit circulating a coolant to provide cooling to the intercooler and including a low temperature radiator configured to cool the first coolant; and an air conditioner circuit circulating a refrigerant and having a primary circuit and an evaporator bypass circuit. A chiller is thermally coupled to the low temperature cooling circuit and the bypass circuit. A chiller shut off valve is configured to be controlled to be selectively opened to provide refrigerant to the chiller to further cool the coolant in the low temperature cooling circuit after the coolant is cooled by the low temperature radiator, thereby providing increased cooling to the intercooler and the compressed charge air to increase engine performance.

Abstract: A chiller system includes an intercooler configured to cool compressed charge air received from a turbocharger or a supercharger; a low temperature cooling circuit fluidly coupled to the intercooler, the low temperature cooling circuit circulating a coolant to provide cooling to the intercooler and including a low temperature radiator configured to cool the first coolant; and an air conditioner circuit circulating a refrigerant and having a primary circuit and an evaporator bypass circuit. A chiller is thermally coupled to the low temperature cooling circuit and the bypass circuit. A chiller shut off valve is configured to be controlled to be selectively opened to provide refrigerant to the chiller to further cool the coolant in the low temperature cooling circuit after the coolant is cooled by the low temperature radiator, thereby providing increased cooling to the intercooler and the compressed charge air to increase engine performance.

Abstract: A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle ?? of the reference voltage vector by ??=2?/N; obtaining a modulating angle ?m of the reference voltage vector by ?m=(Nth?1)×??, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle ?m and the passing angle ?? of the reference voltage vector and the modulating ratio m; comparing a variable quantity ?f the reference voltage vector angle ? and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference

Abstract: A space vector based synchronous modulating method includes sampling a frequency f of a reference voltage vector; checking a relational table of frequencies and carrier wave ratios by the frequency f so as to obtain a carrier wave ratio N; obtaining a passing angle ?? of the reference voltage vector by ??=2?/N; obtaining a modulating angle ?m of the reference voltage vector by ?m=(Nth?1)×??, in which Nth indicates which time of sampling; obtaining a modulating ratio m according to a modulating ratio-frequency curve; accounting and synthesizing an output angle of three basic voltage vectors of the reference voltage vector according to the modulating angle ?m and the passing angle ?? of the reference voltage vector and the modulating ratio m; comparing a variable quantity ?f the reference voltage vector angle ? and the output angle of three basic voltage vectors, and outputting corresponding basic voltage vectors according to the comparing result; synthesizing an output voltage in accordance with the reference