Hybrid Powertrain Second Motor Engine-Driven Generation
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Solution Overview
Problem
In hybrid vehicles, the continuous decrease in battery power when a driving motor connected with the engine participates in driving leads to a lack of electric power, affecting the use of pure electric driving modes.
Innovation Solution
A powertrain system that includes a conversion device, a first motor, a second motor, and an engine, where the second motor is driven by the engine to generate electricity, supplementing the vehicle's electric power and preventing a lack of power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a driving motor connected with the engine participates in driving, then the vehicle can operate in hybrid mode, but the battery power continuously decreases and cannot be effectively supplemented
Solution Approach 1:
The powertrain system is divided into two independent motor systems: a first motor system connected to the engine for primary driving, and a second motor system independently connected to the engine for dedicated electricity generation. This segmentation allows the second motor to specifically replenish battery power without interfering with the primary driving function, thus resolving the contradiction between hybrid mode operation and battery power depletion.
Solution Approach 2:
The second motor is configured to enable the system to self-replenish electric power by being directly driven by the engine to generate electricity and charge the battery. This self-service mechanism allows the vehicle to autonomously supplement battery power during engine operation, preventing continuous power depletion while maintaining hybrid driving capability.
2Use of energy by moving object
If the second motor is added to generate electricity, then battery power can be supplemented, but the device complexity increases
Solution Approach 1:
The second motor is integrated with the engine through direct coupling, merging the electricity generation function into the existing engine system. This integration allows the second motor to share the engine's rotational motion for power generation, reducing the need for separate transmission components and minimizing the increase in system complexity while achieving effective battery supplementation.
Solution Approach 2:
The engine serves multiple functions: it can directly drive the first motor for primary propulsion, independently drive the second motor for electricity generation, or drive both simultaneously. This multi-functionality allows a single engine to support both driving and power generation tasks, reducing the need for additional power sources and limiting the increase in overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The powertrain system effectively supplements the vehicle's electric power, preventing a lack of power and ensuring the continued use of pure electric driving modes.
Implementation Method 1
the second motor, driven by the engine, generates electricity
Data Source
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AI summary
A powertrain system (1000) and a vehicle. The powertrain system (1000) comprises: a conversion device (10), a first motor (200), a second motor (5000), and an engine (300), at least one of the first motor (200) and the engine (300) being used for selectively outputting power to a first traveling end by means of the conversion device (10), the engine (300) being used for selectively outputting power to the first motor (200) by means of the conversion device (10), and the second motor (5000) being in driving connection with the engine (300) so that the powertrain system (1000) has a first simultaneous driving and electricity-generating mode, in which the first motor (200) outputs power to the first traveling end by means of the conversion device (10), and the second motor (5000), driven by the engine (300), generates electricity.