Audi’s e-Tron Sportback features brake-by-wire. What is brake-by-wire, and is it safe? In this video we’ll look at the technology and engineering involved with brake-by-wire, talk about why it’s done, what benefits it has, and what failsafes exists in case of emergency situations.
source/image(PrtSc): Engineering Explained
Is Brake-By-Wire Safe? First drive in the 2020 Audi e-Tron Sportback! Brake-by-wire ultimately uses electronic control of the disc brakes. But if things go wrong, there’s still a way to stop the car. Check out the video to learn all about it!
The brake-by-wire system controls the brakes electronically. A position sensor monitors how far the driver has pushed the brake pedal which is used to determine the amount of braking force requested. A control then unit determines how much hydraulic pressure is required and an electric pump is used to actually generate that pressure and to stop the car. Watch the video above from Engineering Explained for more info:
The e-tron lineup also receives a number of technical spec enhancements for improved utility. Through optimized drive system hardware and software adjustments, the 2021 e-tron achieves efficiency improvements resulting in an EPA-estimated range of 222 miles, an increase of 18 miles. Meanwhile, the e-tron Sportback delivers an EPA-estimated range of 218 miles.