Series hybrid system
The series hybrid system addresses inefficient fuel consumption by controlling engine rotational speed and generator efficiency through a transmission and ECU, enhancing fuel efficiency and reducing engine size.
JP2026111339APending Publication Date: 2026-07-03藤井 英明
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- 藤井 英明
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-03
AI Technical Summary
Technical Problem
Conventional series hybrid systems lack optimal control for fuel consumption and power generation, leading to inefficient fuel use, especially during high-speed driving.
Method used
A series hybrid system with a transmission between the engine and generator, controlled by an electronic control unit (ECU) to maintain engine rotational speed within a predetermined range, optimizing power generation efficiency and reducing engine size and weight.
Benefits of technology
Improves fuel efficiency by minimizing engine rotational speed fluctuations and optimizing generator operation, allowing for engine miniaturization and weight reduction.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026111339000001_ABST
Abstract
The goal is to improve the fuel consumption rate (hereinafter referred to as "fuel efficiency") of in-line hybrid vehicles and reduce vehicle operating costs. [Solution] The series hybrid system 100 includes an engine 101, a generator 102 connected to it, a battery 103 for charging the generator, and a motor 104 driven by the battery 103. A transmission 105 is provided on the power transmission path connecting the engine 101 and the generator 102. A control unit consisting of an ECU 106 and an actuator 107 controls the engine 101 and the transmission 105 so that the rotational speed of the engine 101 is maintained within a predetermined range and the power generation efficiency of the generator 102 is increased.
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Citation Information
Patent Citations
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