Drive Shaft Auxiliary Generator for Vehicle Power and Braking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Motor vehicles, especially large trucks and motor homes, face inefficiencies in energy generation and fuel consumption due to the need for continuous engine operation to power electrical systems, leading to increased fuel waste and air pollution, as existing systems rely on alternators connected to the main engine and lack sufficient capacity for extended power supply.
Innovation Solution
An auxiliary power generation system that couples a generator or alternator to the transmission or drive shaft, leveraging the transmission's gearing to generate electricity at higher speeds and torque, with regenerative braking capabilities, and an advanced control system to optimize energy capture and storage in batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an alternator connected to the main engine is used to power electrical systems, then electrical power can be generated, but the main engine must run continuously causing fuel waste and air pollution
Solution Approach 1:
The patent divides the power generation function into two separate systems: the main engine alternator for primary power needs, and an auxiliary generator connected to the drive shaft for additional electrical power. This segmentation allows the auxiliary generator to capture energy that would otherwise be wasted during vehicle operation, enabling electrical systems to be powered without continuous main engine operation.
Solution Approach 2:
The patent converts the harmful effect of energy loss during vehicle operation into a beneficial resource. By connecting the auxiliary generator to the drive shaft, the system captures kinetic energy that would normally be dissipated during braking or coasting, transforming this wasted energy into useful electrical power for vehicle systems.
2Reliability
If the main engine is kept running to power heating and cooling systems in motor homes and large trucks, then passenger comfort can be maintained, but fuel consumption increases and emissions are generated
Solution Approach 1:
The auxiliary generator system serves multiple functions: it powers heating and cooling systems in motor homes and large trucks, charges battery systems, and can operate independently of the main engine. This multi-functionality ensures reliable power supply for comfort systems while eliminating the need for continuous main engine operation, thereby reducing emissions and fuel waste.
3Object-generated harmful factors
If existing battery-based air conditioning and heat systems are used, then engine idling can be reduced, but the battery capacity is insufficient for extended operation
Solution Approach 1:
The auxiliary generator performs preliminary action by charging the battery system during vehicle operation through the drive shaft connection. This advance charging builds sufficient energy reserves in the battery to support extended operation of comfort systems like air conditioning and heating without requiring the main engine to idle, thereby reducing emissions while maintaining adequate power capacity.
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
This system enhances energy efficiency by effectively harnessing drive train energy for electrical power, reducing fuel consumption, and providing a reliable electricity supply, while minimizing engine idling and associated emissions.
Implementation Method 1
a generator or alternator coupled to the transmission or drive shaft
Data Source
Figure 1
Figure 2
Figure 3
AI summary
An auxiliary power system for a motor vehicle includes a power generator that generates electricity to charge one or more auxiliary power system batteries. The motor vehicle includes an engine and drive train that distributes power from the engine to the drive wheels. The drive train includes a transmission, a drive shaft and a differential that connects the engine to the drive wheels. The power generator is connected to the drive shaft to draw power to generate electricity as well as to apply braking loads on the drive wheels to increase the ability to stop the motor vehicle.