Patent ID: 7446425

Claim:
A cooperative control apparatus comprising: a switching device which switches a generation mode of a generator between a low-generation mode and a high-generation mode using a prescribed electrical load amount as a threshold value when the generator is driven by an engine and charges a battery and the battery supplies electrical power to a plurality of electrical loads; a total electric load amount calculating device which calculates a total electric load amount of the plurality of electrical loads; a working state checking device which checks a working state of ones of the plurality of electrical loads; a projecting device which generates a projected value of the total electric load amount of the plurality of electrical loads after a prescribed time elapses according to the total electric load amount and the working states of the plurality of electrical loads; a target value setting device which sets target values of electric load amounts for ones of the plurality of electrical loads; and an electric load amount reducing device which reduces the electric load amount of the plurality of electrical loads, wherein when the projected value of the total electric load amount is larger than the threshold value and a difference between the projected value of the total electric load amount and the threshold value is lower than a prescribed value, a target value of the electric load amount of at least one of the plurality of electrical loads is set and the electric load amount thereof is reduced to target value so that the total electric load amount is made lower than the threshold value.