Advantages of DC Brushless Motors and Application Prospects in Automotive Fields
At present, the trend of electronic functions of automobiles is increasing, in response to increasingly stringent fuel energy efficiency regulations, and to meet consumers' higher requirements for energy saving, safety, comfort and convenience. Automobiles have evolved from mere mechanical products to complex mechatronic products, and the number of motors installed in automobiles continues to increase. It is predicted that by 2020, the number of motors in each luxury car will be as many as 120. Due to their various advantages, DC brushless (BLDC) motors are increasingly being integrated into automotive water pumps, oil pumps, fuel pumps, cooling fans, HVAC, hybrid systems, seat fans and more. Achieve greater energy efficiency and performance.
Advantages of DC brushless motors
Brushless DC motors eliminate the need for brushes and commutators, solve space-constrained system designs, and don't worry about general wear, sparks and noise, provide good control and provide variable speed control for specific applications in the car. More importantly, DC brushless motors can improve fuel efficiency and save energy by about 60% to 70%. When the brushless motor is used for electric power steering (EPS), the mileage is increased by 3~5%, and the electric water pump (EWP) and electric oil pump (EOP) are improved by about 3%, and the fuel pump is increased by about 1%. efficiency. For example, pumps and pumps are typically operated from engine power. If the engine is stopped, there is no power to the engine start-stop system. However, if the motor is used for pumps and pumps, these functions can be operated independently, regardless of whether the engine is started or stopped, thereby improving fuel economy.
