News

Author: Johnny Liu Title: Chief Executive Officer at Dowway Vehicle Published: July 15, 2026 Reading Time: 15 mins Category: Automotive Engineering, Drive-by-Wire Technology, Chassis Dynamics Author’s Note As the CEO of Dowway Vehicle and a chassis engineer, I have spent decades analyzing how cars slow down. In our industry, brake systems are sacred. Yet, as […]

Author’s Note “When we build motorcycles, we do not try to completely destroy vibrations. Instead, we learn to shape them. Balancing a single-cylinder or parallel-twin engine is always about compromise. In this post, we will break down the basic physics of First-Order (Primary) Inertial Forces, see how they turn into the Inertial Force Ellipse, and

About the Author Johnny Liu is the Chief Executive Officer at Dowway Vehicle, a pioneering automotive technology firm specializing in next-generation intelligent chassis systems and drive-by-wire solutions. With over two decades of automotive powertrain and chassis development experience, Johnny leads teams building software-defined electric vehicle (SDV) systems. Executive Summary The automotive industry is shifting from

Author: Johnny Liu, CEO at Dowway Vehicle Published: June 15, 2026 Quick Summary of Key Facts 1. Why Is the Traditional Vacuum Booster System Going Away? For decades, the vacuum booster was the standard way to stop a gasoline-powered car. To understand why it is disappearing, we have to look at how it actually works.

Author’s Note “At Dowway Vehicle, we build L4 low-speed autonomous delivery, sanitation, and logistics chassis for real-world deployments. One critical safety item in drive-by-wire vehicles is verifying that the hydraulic braking system is fully functional before the wheels even turn. This technical guide explains how we use EHB Power-on Self-Pre-pressurization to handle safety diagnostics directly

Author: Johnny Liu, CEO at Dowway Vehicle Published on: July 9, 2026 Read Time: 15 mins Category: Electric Vehicles, AI Engineering, Model-Based Design (MBD) Beyond the Chatbot Hype If your automotive software engineering team looks at frameworks like Hermes Agent or OpenClaw and simply sees a “smarter chatbot,” they are using them wrong. In high-integrity

Quick Summary What is Ackermann Steering Geometry? It is a smart setup of mechanical links in your car’s steering. It makes the inside front wheel turn at a sharper angle than the outside wheel (usually a$2^\circ$to$5^\circ$difference) when you go around a corner. This ensures both front tires track smoothly around a single, shared turning center,

Modern cars are packed with complex electronics. As we build smarter vehicles, the circuit boards and silicon inside must be extremely reliable. I have spent years working on vehicle hardware. I know how painful functional safety compliance can be. This guide will walk you through ISO 26262-5 (hardware-level development) using clear, practical steps. We will

1. The EV Chassis Challenge Heavy battery packs inside the floorpan increase overall vehicle weight and lower the center of gravity. At the same time, electric drive motors deliver high torque instantly. For chassis designers, this means the front suspension must offer high lateral stiffness, stable wheel alignment, and excellent shock absorption. It must also

About the Author Johnny Liu leads Dowway Vehicle as CEO. With over twenty years in car structural dynamics, chassis setup, and noise, vibration, and harshness (NVH) testing, Johnny focuses on putting fresh rotordynamics and vibration control ideas into practical use for electric drivetrains and vehicle suspension systems. In basic mechanics, stiffness is simple: it is