Kingfieldpcb allows BYD’s electric car motor to run continuously for 100 hours without any obstacles.

Motor safety hazards

People who have driven a car care most about safe driving and comfortable driving. A small number of veteran drivers have encountered mental attacks caused by electric car motor failures:
1. Difficulty in starting: It takes multiple ignitions to start normally. If you are in a hurry to start, you will just feel powerless and irritable.
2. Unstable idling: When the car is in neutral, it shakes severely and is very uncomfortable to operate.
3. Easy to stall: The car will suddenly stall after being parked for a period of time. Whether it is a traffic light or driving on a slope, there are safety hazards.
4. Insufficient power: Accelerating to overtake on the highway or accelerating to change lanes in an emergency, if the motor power is insufficient, it is also very dangerous.
5. Increased fuel consumption: If the motor does not run smoothly, the fuel consumption of fuel vehicles will increase, and long-term accumulation is also an economic loss.

Automobile Motor Test Experiment

Car brand-BYD wants to reduce the safety hazards caused by motor failure and conducts prenatal experiments.
1. Functional test: Understand the power characteristics of the motor by measuring the output power of the motor at different speeds;
2. Torque test: Understand the torque characteristics of the motor by measuring the output torque of the motor at different speeds;
3. Efficiency test: Calculate the power of the motor by measuring the output power and input power of the motor;
4. Temperature rise test: Understand the heat dissipation of the motor by testing the temperature change of the motor under different loads.

King Field PCB’s Solution

Hypothesis Reasoning

While testing the motor, the motor circuit board is also tested simultaneously. Therefore, the motor PCB needs to maintain good operation under non-stop working conditions. Under these prerequisites, Kingfieldpcb told BYD: “As long as the motor is still running normally, our PCB can be used normally. Let’s see who can hold on to the end in time.”

Outstanding Design Capabilities

After that, we went through the “0-1” PCB design, wiring, material selection, proofing BDand testing, and gave BYD some sample PCB tests. Through the test, when it was close to 100 hours of non-stop work, the internal structure of the motor had a slight loss, but our motor circuit board still maintained stable operation. Whether it is signal reception, heat dissipation function, or circuit operation, it is within the normal range.

IPC 3 Assembly Quality

With 7 SMT production lines working 24 hours a day in our factory, we completed 100,000 pcs of patch assembly within 2 weeks. We received praise for our on-time delivery, high quality and efficient supply capabilities with 90% IPC 3 and 10% IPC 2.

Since then, it is only natural for BYD to choose Kingfieldpcb for its motor PCB. As we solve the motor circuit board problems of more and more brands, King Field has gradually become a default channel in the PCB industry for automotive motor PCB!