Vehicle Acceleration Compensation for ECO Mode Torque Demand
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Solution Overview
Problem
New energy vehicles face challenges in meeting power requirements when in ECO mode, especially in scenarios requiring large torque or high power, leading to poor driving experience due to insufficient acceleration capability.
Innovation Solution
An acceleration compensation method and apparatus that dynamically switch the vehicle's mode based on traveling environment and parameter information, such as road slope and driver input, to enhance acceleration capability in real-time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the vehicle operates in ECO mode to extend battery life, then energy consumption is reduced, but acceleration capability deteriorates
Solution Approach 1:
The patent implements dynamic mode switching within ECO mode based on real-time detection of acceleration requirements. The system transitions between first mode (lower acceleration capability) and second mode (higher acceleration capability) depending on whether acceleration compensation is needed, making the vehicle's performance characteristics adaptable rather than static.
Solution Approach 2:
The patent changes operational parameters by switching between different ECO sub-modes with different acceleration capabilities. The controller adjusts torque distribution and power output parameters dynamically, allowing the vehicle to maintain energy efficiency while providing enhanced acceleration when required by driving conditions or user needs.
2Duration of action of stationary object
If the vehicle limits torque and power output in ECO mode, then battery life is extended, but the ability to meet power requirements in climbing scenarios deteriorates
Solution Approach 1:
The system performs preliminary detection of acceleration requirements by monitoring accelerator pedal input, vehicle speed, and other parameters before actual acceleration is needed. This allows the controller to proactively switch to the second mode with higher torque capability when climbing or high-power scenarios are anticipated, rather than waiting for performance deficiency to manifest.
Solution Approach 2:
The patent implements a feedback mechanism where the controller continuously monitors driving conditions and acceleration performance, then adjusts the operating mode accordingly. When the system detects that acceleration compensation is required (through pedal input analysis, speed monitoring, or other indicators), it feedback-controls the mode switching to provide appropriate torque and power output while maintaining overall energy efficiency.
Data Source
AI summary
An acceleration compensation method includes obtaining traveling environment information and/or traveling parameter information of a vehicle running in a first mode, and switching the first mode of the vehicle to a second mode when the traveling environment information and/or the traveling parameter information meet/meets a preset condition. In a case of a steady speed and/or accelerator pedal input, an acceleration capability of the vehicle in the second mode is greater than an acceleration capability in the first mode.