What Happens When the Motor Fails?
2 Answers
When a car's motor fails, it results in the generator being unable to supply electrical power externally. Over time, the battery's energy will deplete rapidly, leading to the car's inability to start. Below is a partial introduction to automotive motors: 1. Function: A motor is an electrical component that converts electrical energy into mechanical energy and vice versa. When electrical energy is converted into mechanical energy, the motor exhibits the working characteristics of an electric motor; when mechanical energy is converted into electrical energy, it functions as a generator. Most electric vehicles, during braking, convert mechanical energy into electrical energy, which is then fed back to the battery for recharging via the generator. 2. Development Status and Classification of Motors: The driving motors commonly used in electric vehicles include four types: DC motors, asynchronous motors, permanent magnet synchronous motors, and switched reluctance motors. DC motors were the first to be applied in electric vehicles, known for their good control performance and low cost. With advancements in electronic technology, mechanical manufacturing, and automatic control, asynchronous motors, permanent magnet synchronous motors, and switched reluctance motors have demonstrated superior performance compared to DC motors, gradually replacing them.
In the automotive world, if a motor fails, things can get pretty bad. Different types of motors have varying impacts: for instance, if the starter motor goes bad, your car won't even make a sound when you turn the key, acting like it's out of battery, leaving you to push it or call for help; a cooling fan motor failure is even more dangerous, causing engine temperatures to skyrocket, potentially damaging parts or even causing a fire, especially noticeable during summer traffic jams; if an electric vehicle's drive motor fails, it's completely paralyzed—similar to a gas car running out of fuel but with a key difference, and the repair costs are higher. From my experience in auto repair, common causes include worn-out brushes or short circuits, with symptoms like increased noise or complete failure. Early inspections can prevent chain reactions, such as listening for unusual sounds during regular maintenance. I recommend checking the engine bay temperature after each car wash—if it's excessively hot, inspect whether the fan is functioning properly.
