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IPGATE AG · IP Portfolio A · Brake-by-Wire Foundations
Foundational Brake-by-Wire patents and first-generation high-dynamic pressure control (2005–2012)
Overview
84 inventions across 9 patent families (2005–2012) — the foundations of Brake-by-Wire and the first generation of high-dynamic pressure control (HDS 1).
Portfolio A spans eight years of foundational research and marks IPGATE's entry into the brake-by-wire domain. Two sub-portfolios establish the technological bedrock: A1 (IBS Basic) covers the core Brake-by-Wire architecture, basic pressure control via current-proportional piston pressure control (PPC), and fail-safe system architecture. A2 (IBS Premium) builds on this foundation with the MUX multiplexing pressure control process, the first generation of highly dynamic pressure control (HDS 1) with Plunger-Flow and PWM valve modulation, pedal feel simulation, and the first 1-Box integration concepts — all of which became prerequisites for the second-generation IBS systems in Portfolio B.
Sub-Portfolios
Portfolio A is structured in two technology fields: Follow-up electrohydraulic brake booster without pedal feel simulator (A1) and fail-safe brake-by-wire system with pedal feel simulator (A2).
Establishes the core hydraulic architecture for integrated brake systems: piston pressure control (PPC), fail-safe accumulator architecture, spring-decoupled brake booster systems, and regenerative blending via EHB booster.
Extends A1 with the MUX multiplexing pressure control process, first-generation highly dynamic pressure control (HDS 1) with Plunger-Flow and PWM valve modulation, pedal feel simulation with on-board diagnostics, and the first 1-Box brake integration concept — the bridge to Portfolio B.
At a Glance
| Family | Priority | Innovations | Cumulative | Sub-Portfolio | Focus | Jurisdictions |
|---|---|---|---|---|---|---|
| E87 | 04 / 2005 | 12 | 12 | A1 | PPC Pressure Control · MUX Valve Control | DE · EP |
| E112 | 02 / 2009 | 3 | 15 | A1 | Spring-Decoupled Brake Booster | DE |
| E117 | 09 / 2009 | 4 | 19 | A1 | Regenerative EHB Booster · Recuperation | DE |
| E120 | 06 / 2010 | 4 | 23 | A1 | Fail-Safe Accumulator Architecture | DE · EP · US |
| E90 | 11 / 2005 | 13 | 36 | A2 | MUX Pressure Modulation · Map Control | EP · DE · US |
| E102 | 02 / 2009 | 25 | 61 | A2 | HDS 1: Plunger-Flow · PWM Valve · Bridge to HDS 2 | EP · DE · US · CN · IN · KR |
| E122 | 09 / 2010 | 13 | 74 | A2 | Pedal Feel Simulator: Design & Diagnostics | DE · US · CN |
| E128 | 04 / 2011 | 5 | 79 | A2 | Sensor Solutions & PCB Integration | DE |
| E132 | 02 / 2012 | 5 | 84 | A2 | 1-Box BbW Architecture · Single-Circuit Plunger | DE |
Explore
See all patent families in chronological order with interactive filters.
IP Timeline →Three generations of electrohydraulic pressure control — from MUX to HDS 1 to HDS 2.
IBS Pressure Control →93 inventions across B1, B2, B3 — second-generation IBS and brake-by-wire production readiness.
IP Portfolio B →