Dump Truck Brake Feedback Display for Regenerative Power Recovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Large work vehicles with electric motors face inefficiencies in recovering surplus regenerative power due to limited battery capacity, leading to excessive consumption by resistors, which can be addressed by optimizing driver braking operations.
Innovation Solution
A work vehicle equipped with a display device that shows charging and power consumption levels, prompting drivers to adjust braking for efficient regenerative power recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the driver performs steep braking operations to quickly stop the vehicle, then the braking performance and stopping distance are improved, but the regenerative power exceeds the battery charging capacity causing energy loss through the power consumption device
Solution Approach 1:
The display device provides real-time feedback to the driver by displaying the charging power and power consumption levels, enabling the driver to adjust braking operations based on the displayed information to optimize regenerative power recovery
Solution Approach 2:
The display device acts as an intermediary between the vehicle's power management system and the driver, translating complex power flow information into understandable visual indicators that guide driver behavior
2Loss of energy
If the battery charging capacity is increased to absorb more regenerative power, then the regenerative power recovery efficiency is improved, but the vehicle weight and cost increase
Solution Approach 1:
The system enables self-service by allowing the driver to actively participate in optimizing regenerative power recovery through informed braking operations, rather than relying solely on automated systems or larger battery capacity
Solution Approach 2:
The system changes the operational parameters by providing real-time information about charging power and power consumption, enabling dynamic adjustment of braking behavior to match battery charging capacity
3Reliability
If the power consumption device is used to consume surplus regenerative power, then the battery is protected from overcharging, but the energy is wasted and regenerative power recovery efficiency decreases
Solution Approach 1:
The display device provides feedback on power consumption levels, making the driver aware when the power consumption device is active and enabling them to adjust braking operations to minimize energy waste while maintaining necessary battery protection
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
Enhances efficient regenerative power recovery by guiding drivers to perform appropriate braking, reducing load on vehicle structures and optimizing energy use.
Implementation Method 1
regenerative power generated by the electric motor
Implementation Method 2
charging power to be charged in the battery
Implementation Method 3
power consumption to be consumed by the power consumption device
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
In a dump truck, a controller generates a display image 100 including a charging power display portion 130 that displays magnitude of charging power to be charged in a battery and a power consumption display portion 140 that displays magnitude of power consumption to be consumed by a power consumption device, of regenerative power, and causes a display device to display the display image 100. With the configuration, a driver can recognize a degree of charging power or power consumption per unit time according to a current depression amount of a brake pedal, and the driver is urged to perform an appropriate braking operation to efficiently recover the regenerative power.