How fast can a 400w motor run after speed limit removal?
3 Answers
400w motor can reach a maximum speed of 30 km/h after speed limit removal. Here are the detailed explanations: 1. W is the speed limit fine-tuning potentiometer: Adjusting it can change the speed of the electric vehicle within a certain range. It has been preset by the manufacturer, and for safety reasons, it's best not to alter the value arbitrarily, as it may shorten the lifespan of the motor and battery. 2. A is the current-limiting resistor: It protects the motor and battery from damage caused by overheating or overcurrent when the vehicle is overloaded. Here are some additional introductions: 1. Introduction: A motor refers to an electromagnetic device that achieves electrical energy conversion or transmission based on the law of electromagnetic induction. 2. Function: In circuits, the motor is represented by the letter M. Its main function is to generate driving torque, serving as a power source for electrical appliances or various machinery. The generator is represented by the letter G in circuits, and its main function is to convert mechanical energy into electrical energy.
Last time I talked about the topic of removing the speed limit on a 400W motor. This power level is commonly used in electric vehicles, with the factory speed limit set at around 25 km/h as a standard design. After removing the limit, it can theoretically reach speeds between 35 to 40 km/h, but it may not necessarily run that fast. The motor power isn't very high, and factors like vehicle weight and road slope can slow it down. If the load is heavy or the slope is steep, it might only reach 30 km/h. Removing the speed limit might feel more thrilling, but the risks are too high—like the braking system not keeping up with rapid responses or losing control during turns. Additionally, removing the speed limit could cause the motor to overheat, shortening its lifespan or even burning out the controller, which isn't worth the trade-off. I suggest not trying it lightly and considering safety aspects more, such as checking whether the vehicle design supports higher speeds.
I've played around with some modified electric scooters. After removing the speed limiter on a 400W motor, the acceleration is noticeably better - going from the usual 20 km/h to nearly 40 km/h feels exhilarating, though not as fast as I imagined. The key factors affecting speed are battery capacity and wheel type. When the battery is weak, the speed drops quickly, and you only get maximum performance on flat roads. After removing the speed limiter, power consumption increases dramatically - a 40 km range might be halved. As a user, I think this requires caution. Higher speeds make handling more difficult, especially on slippery rainy roads where accidents are more likely. It's best to test the brakes before accelerating each time to ensure you can stop promptly. Protecting the vehicle should be the priority - don't blindly pursue speed while neglecting everyday practicality.
