Technology Article

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

About the Author Johnny Liu is the Chief Executive Officer at Dowway Vehicle. With over twenty years of practical experience in automotive structural durability, chassis design, and vehicle safety engineering, Johnny has led numerous vehicle platform programs. His work focuses on applying fatigue-life estimation and material dynamics to ensure high-performance structural integrity in modern transportation.

At Dowway Vehicle, we build high-performance vehicle and marine parts. When we replace heavy steel with lightweight fiber-reinforced composites, we must know exactly how long these parts will last under cyclic loads. To do that, we rely on a tool called the S-N curve. Here is our plain-English guide to understanding the S-N curve, the

Author: Johnny Liu, CEO at Dowway Vehicle Published: July 2, 2026 Category: Structural Analysis / Finite Element Method (FEM) / Automotive Engineering Quick Summary The “Preload Reset” Trap in FEA When I first started simulating bolted joints and high-pressure seals at Dowway Vehicle, I ran into a frustrating issue. I would set up my model,

? TL;DR This guide provides a step-by-step tutorial on implementing STM32 CAN (Controller Area Network) communication using the STM32 HAL Library (bxCAN). Written by an automotive electronics expert, it covers physical hardware setup, precise baud rate calculation with Time Quanta (TQ), zero-filter “Accept-All” configurations, interrupt-driven message reception, and real-world industrial troubleshooting guidelines. 1. Introduction In