Dual-Pedal Vehicle Acceleration Device with Electronic Control
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Solution Overview
Problem
Existing vehicle acceleration devices operated by upper limbs are uncomfortable, require continuous effort, and can cause jerks during driving, leading to poor fuel efficiency and safety issues due to non-optimized acceleration management and unstable power supply, especially for vehicles with electronic control units that depend on specific response curves.
Innovation Solution
A dual-pedal acceleration assembly where one pedal is actuated by a lower limb and the other by an upper limb, with mechanical steering wheel control means and a switch block to transmit signals to the electronic control unit, using identical pedal supports and detection means to ensure compatibility and readability, allowing versatile operation by both able-bodied and disabled individuals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If mechanical cable and linkage systems are used for hand-operated acceleration control, then hand control capability is provided for disabled users, but continuous strong pressure is required making operation uncomfortable and difficult
Solution Approach 1:
The patent replaces the traditional mechanical cable and linkage system with an electronic sensor-based system. A force sensor detects the force applied to the control element, and an electronic control unit processes this signal to control the throttle, eliminating the need for mechanical force transmission through cables and linkages.
Solution Approach 2:
The control element is designed to be operable by both upper limbs (for disabled users) and lower limbs (for able-bodied users), providing universal accessibility. The system can function as a primary control for disabled users or as a supplementary control for able-bodied users who may prefer hand operation in certain situations.
2Ease of operation
If electronic assistance and multiplication means are added to reduce continuous effort, then operation comfort improves, but the system complexity increases and existing disadvantages remain
Solution Approach 1:
The patent uses electronic sensors and control units to replace complex mechanical assistance systems. The force sensor electronically detects applied force, and the electronic control unit digitally processes and transmits the signal to the throttle actuator, simplifying the overall system architecture while improving operation comfort.
Solution Approach 2:
The electronic control unit acts as an intermediary between the force sensor and the throttle actuator. It receives the force signal, processes it according to predefined characteristics, and generates the appropriate control signal for the throttle, enabling smooth and natural acceleration response without complex mechanical linkages.
3Measurement precision
If electronic sensors and control units are used to detect pedal position and pressure, then acceleration control precision improves, but the system requires stable power supply and is sensitive to voltage fluctuations
Solution Approach 1:
The electronic control unit is programmed with predefined characteristics of the force sensor output signal. This allows the system to compensate for variations and fluctuations in advance, ensuring stable and accurate acceleration control even when power supply conditions vary.
Solution Approach 2:
The system continuously monitors the force applied to the control element through the force sensor and adjusts the throttle position accordingly. This closed-loop feedback ensures precise acceleration control and allows the system to compensate for any deviations or fluctuations in real-time.
4Device complexity
If a single pedal set is used for acceleration control, then device simplicity is maintained, but it cannot accommodate both able-bodied and disabled users
Solution Approach 1:
The control element is designed as a universal interface that can be operated by both upper limbs (for disabled users) and lower limbs (for able-bodied users). The same physical control element responds to force input regardless of which limb applies it, providing accessibility to all users without requiring separate control mechanisms.
Solution Approach 2:
The system dynamically adapts to different user needs through software configuration rather than requiring physical modifications. The electronic control unit can be programmed to recognize and respond to different operating patterns, allowing the same hardware to serve both disabled and able-bodied users effectively.
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 solution provides a comfortable, smooth, and versatile acceleration system that reduces manufacturing costs, ensures correct signal transmission, and enhances driving safety and fuel efficiency by allowing progressive acceleration control, suitable for both able-bodied and disabled users with minimal irreversible modifications.
Implementation Method 1
a force sensor which detects a force applied to the control element
Implementation Method 2
an electronic control unit which adjusts a position of the throttle on the basis of a signal from the force sensor
Data Source
Figure 1~2
Figure 3
AI summary
Device for accelerating a vehicle equipped with an acceleration system comprising a pedal assembly P1 intended to be actuated by a user's lower limb, characterized in that the acceleration device comprises a pedal assembly 2 and means for controlling the pedal assembly 2 by an upper limb. Assembly for accelerating a vehicle equipped with an acceleration system comprising a pedal assembly P1 intended to be actuated by a user's lower limb, characterized in that the acceleration assembly comprises such an acceleration device 1, the pedal assembly P1 of the vehicle, and means 4 for transmitting a signal from the pedal assemblies 2, P1 to an electronic control unit ECU for controlling the acceleration of the vehicle. Vehicle comprising such an acceleration assembly.