A protective cover assembly is provided. At least one evaporator is provided for cooling a frontal part of the passenger compartment by evaporating the coolant. The power supply senses the power delivered from a primary source and produces a power-down signal when the power is interrupted. The Cy5-cDNA is placed on the DNA micro array chip and hybridized to the F-cDNA. A processing unit of the control unit is programmed to determine a duty ratio of a drive signal of the motor, based on the desired fluid pressure of at least one of the wheel-brake cylinders.