Vehicle Deceleration Control System with Adaptive Power Rules
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Solution Overview
Problem
Conventional deceleration systems in vehicles, such as motorcycles, fail to adequately mitigate deceleration caused by back torque due to a fixed operation of air control valves, leading to insufficient or excessive deceleration based on the vehicle's driving state.
Innovation Solution
A deceleration control system that includes a driving state detector, a deceleration start detector, and a controller, which switches between normal and deceleration state rules to adjust the driving power source's power based on the detected driving state, ensuring appropriate deceleration mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the air control valve operates in a uniformly fixed manner, then the control system is simple, but the degree to which deceleration is mitigated is insufficient or in excess
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed, static air control valve operation to a dynamic control system that switches between normal state rule and deceleration state rule based on detected driving conditions. The controller dynamically adjusts the air supply to the engine based on real-time driving state detection, making the deceleration mitigation adaptive rather than uniform.
Solution Approach 2:
The patent changes the control parameters by introducing different control rules (normal state rule vs. deceleration state rule) that adjust the air supply quantity based on driving state. When deceleration is detected, the system changes parameters such as throttle valve opening degree and air supply amount to achieve appropriate deceleration mitigation, rather than maintaining fixed parameters.
2Reliability
If the driving power is increased during deceleration to mitigate the degree of deceleration, then the deceleration is properly mitigated, but the control rule must be complex to handle different driving states
Solution Approach 1:
The patent segments the control logic into distinct control rules: normal state rule for常规 driving conditions and deceleration state rule for deceleration conditions. This segmentation allows the system to apply appropriate control strategies for different states without creating overly complex unified logic. The controller selects which rule to apply based on deceleration detection results.
Solution Approach 2:
The patent implements feedback by using the driving state detector to continuously monitor vehicle conditions and feed this information back to the controller. The controller then adjusts the air supply and driving power accordingly. This closed-loop feedback mechanism enables the system to adapt to different driving states and apply the appropriate control rule, managing complexity through intelligent decision-making rather than mechanical complexity.
Data Source
AI summary
A deceleration control system in a vehicle comprises; a deceleration start detector; a memory for storing a normal state rule and a deceleration state rule to control a driving power, and a controller for controlling the driving power; wherein in the deceleration state rule, the driving power is changed based on the detection by a driving state detector, and a driving power decided in accordance with the deceleration state rule is greater than a driving power decided in accordance with the normal state rule according to the same driving state: and wherein the controller switches the normal state rule to the deceleration state rule and controls the driving power in accordance with the deceleration state rule, based on the detection by the driving state detector, when the deceleration start detector detects that the deceleration has started.