In my last post, we looked at how gears work. You already know that gears use tooth ratios to trade speed for torque. Power stays constant, minus losses. But as someone who builds drivetrains every day, I can tell you that the real difference between a great gearbox and a poor one is not whether […]
About the Author Johnny Liu is the Chief Executive Officer at Dowway Vehicle. With over twenty years of direct leadership in automotive chassis dynamics, powertrain isolation, and advanced elastomer applications, Johnny bridges the gap between raw polymer chemistry and vehicle refinement for global OEMs. Under his leadership, Dowway Vehicle continues to build next-generation NVH and
Published on June 15, 2026 | By Johnny Liu (CEO at Dowway Vehicle, Former Chassis Calibration Engineer) Meet the Author As the CEO of Dowway Vehicle and a former chassis tuning engineer, I have spent years on frozen lakes and wet, low-grip test tracks. I often hear drivers simplify wet-road accidents down to a single
Executive Summary As the global electric vehicle (EV) sector moves away from chaotic price wars and enters a phase of mature structural consolidation, automakers are forced to rethink their supply chain architectures. On June 11, 2026, Nio’s mass-market sub-brand officially launched its updated 2026 Onvo L60 (新乐道L60), priced from 192,800 RMB (and as low as
By Johnny Liu, CEO at Dowway Vehicle Quick Takeaway Hazard Analysis and Risk Assessment (HARA) is the starting point of the ISO 26262-3 Concept Phase. It spots hazards caused by system failures and rates their risk using three metrics: Severity (S), Exposure (E), and Controllability (C). These scores combine to give you an Automotive Safety
By Johnny Liu, CEO at Dowway Vehicle Published on June 12, 2026 Quick Summary Here is a quick lookup of our key simulation settings and findings: Bearings: Simple Parts, Huge Risks Bearings are simple but highly critical parts of rotating machinery. Almost any machine with rotating parts needs bearings, including electric motors, high-speed machine spindles,
About the Author Johnny Liu is the Chief Executive Officer at Dowway Vehicle. With over a decade of hands-on experience in automotive engineering, powertrain systems, and chassis dynamics, Johnny offers straightforward, unbiased technical analysis of the rapidly shifting Electric Vehicle (EV) market. Recently, the car community has been flooded with a heated tech war between
Weight Reduction: A Real-World Automotive View With electric vehicles growing fast and performance needs rising, making parts lighter is no longer optional. It is a must. At Dowway Vehicle, we push our engineering teams to strip weight from chassis parts without losing stiffness or lowering safety factors. One of the best ways to do this
Author: Johnny Liu, CEO at Dowwaye Published Date: June 4, 2026 Category: Automotive Engineering / Brake-by-Wire / Functional Safety (ISO 26262) Estimated Reading Time: 15 mins 0. Introduction: Removing the Hydraulic Safety Net In the current era of electric vehicles and automated driving, the Electro-Mechanical Brake (EMB) is widely seen as the ultimate execution unit
1. Executive Summary / TL;DR Modern drive-by-wire chassis control demands a clean balance between low-speed agility (such as tight urban maneuvers) and high-speed stability (such as highway lane changes). While Four-Wheel Steering (4WS) systems offer the theoretical capability to satisfy both requirements by switching between counter-phase (opposite steering) and same-phase (identical steering) modes, traditional control
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