Electric load control system and vehicle air-conditioning system having the same
AssigneeDenso Corporation
InventorsYuji Takeo, Ken Matsunaga, Hisashi Ieda, Mitsuyo Oomura
Life of this patent
Estimating the term…
Abstract
In a vehicle air-conditioning system, a supply of electric power to a first electric heater and a supply of electric power to a second electric heater are duty controlled at the same duty ratio in such a manner that the supply of the electric power to the second electric heater is phase shifted by one half of a period from the supply of the electric power to the first electric heater.
Claims14
An electric load control system, which charges a battery with electric power generated by an electric power generating means and supplies electric power from the battery to a plurality of electric loads through a fuse, the electric load control system comprising a control means, which controls a supply of the electric power to each of the electric loads such that an electric current to the fuse is equal to or less than a tolerable electric current level of the fuse, wherein the supply of the electric power to each of the electric loads is duty controlled by the control means in such a manner that a period of duty control operation is the same for all of the electric loads, and the supply of the electric power to one of the electric loads is phase shifted from the supply of the electric power to another one of the electric loads.
An electric load control system, which charges a battery with electric power generated by an electric power generating means and supplies electric power from the battery to a plurality of electric loads, the electric load control system comprising a control means, which controls a supply of the electric power to each of the electric loads, wherein the supply of the electric power to each of the electric loads is duty controlled by the control means in such a manner that a period of duty control operation is the same for all of the electric loads, and the supply of the electric power to one of the electric loads is phase shifted from the supply of the electric power to another one of the electric loads, so that each power-on time and each power-off time of the one of the electric loads are shifted from each corresponding power-on time and each corresponding power-off time of the other one of the electric loads, respectively.
An air-conditioning system of a vehicle comprising:
- a plurality of electric loads;
- and
- an electric load control system, which charges a battery of the vehicle with electric power generated by an electric power generating means of the vehicle and supplies electric power from the battery to the electric loads through a fuse, wherein the electric load control system includes a control means, which controls a supply of the electric power to each of the electric loads such that an electric current to the fuse is equal to or less than a tolerable electric current level of the fuse, wherein the supply of the electric power to each of the electric loads is duty controlled by the control means in such a manner that a period of duty control operation is the same for all of the electric loads, and the supply of the electric power to one of the electric loads is phase shifted from the supply of the electric power to another one of the electric loads.
An air-conditioning system of a vehicle comprising:
- a plurality of electric loads;
- and
- an electric load control system, which charges a battery of the vehicle with electric power generated by an electric power generating means of the vehicle and supplies electric power from the battery to the electric loads, wherein the electric load control system includes a control means, which controls a supply of the electric power to each of the electric loads, wherein the supply of the electric power to each of the electric loads is duty controlled by the control means in such a manner that a period of duty control operation is the same for all of the electric loads, and the supply of the electric power to one of the electric loads is phase shifted from the supply of the electric power to another one of the electric loads, so that each power-on time and each power-off time of the one of the electric loads are shifted from each corresponding power-on time and each corresponding power-off time of the other one of the electric loads, respectively.
Dependencies are inferred from the claim text.