Throttle Response Rate Control for Intake Pressure Loss
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Solution Overview
Problem
Existing electronic throttle control systems in vehicles often result in slower acceleration and throttle response due to rapid loss of pressure and air throughput in the intake hose, leading to a less consistent driving experience.
Innovation Solution
A throttle response control system that monitors intake hose temperature, pressure, and engine speed using sensors, activating a rate limit logic to slow the throttle opening rate when conditions are risky, preventing airflow restriction and improving throttle response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the throttle body opens rapidly to the target throttle angle, then the throttle response speed is improved, but the air pressure and air throughput in the intake hose are lost rapidly, causing slower acceleration and reduced vehicle performance
Solution Approach 1:
The system dynamically adjusts the throttle opening rate based on real-time monitoring of intake hose air temperature, pressure, and engine speed. The throttle controller modifies the throttle body opening speed adaptively, slowing it down when conditions indicate potential airflow restriction (high temperature, low pressure) and allowing faster opening when conditions are favorable, thus resolving the contradiction between response speed and acceleration performance
Solution Approach 2:
The system implements feedback control by continuously monitoring intake hose air temperature, pressure, and engine speed through sensors. This feedback information is used by the throttle controller to adjust the throttle opening rate in real-time, preventing airflow restriction while maintaining optimal throttle response. The feedback loop ensures that the throttle operates within safe parameters while maximizing performance
2Reliability
If the throttle body opens slowly to prevent air pressure loss, then the air throughput is maintained, but the throttle response becomes slower and acceleration is reduced
Solution Approach 1:
The system uses dynamic adjustment of throttle opening rate based on real-time conditions. Rather than a fixed slow opening, the throttle controller adapts the opening speed moment-by-moment based on sensor feedback, allowing fast opening when safe and slow opening only when necessary to prevent airflow restriction, thus maintaining both reliability and speed
Solution Approach 2:
The system changes the operational parameters of the throttle body by adjusting opening speed based on intake hose temperature, pressure, and engine speed conditions. The throttle controller modifies the rate of opening dynamically, changing from fast to slow opening depending on the current operating state, thereby maintaining airflow stability without sacrificing response speed
3Speed
If the throttle opens at high speed under all conditions, then the throttle response is fast, but the intake hose may experience airflow restriction due to rapid pressure changes
Solution Approach 1:
The system takes preliminary action by monitoring intake hose air temperature, pressure, and engine speed before the throttle opens. When the sensors detect conditions that could lead to airflow restriction (high temperature combined with low pressure), the throttle controller proactively slows the opening speed to prevent the harmful effect from occurring in the first place
Solution Approach 2:
The system uses feedback from sensors monitoring intake hose conditions to control the throttle opening speed. The real-time data on temperature, pressure, and engine speed is continuously fed back to the throttle controller, which adjusts the opening speed accordingly to prevent airflow restriction while maintaining fast response when conditions allow
Data Source
AI summary
Methods, systems, and devices for a throttle response control system that controls the rate at which a throttle opens. The throttle response control system includes one or more sensors and an electronic control unit connected to the sensors, the one or more sensors being configured to detect an air temperature in an intake hose, an engine speed, and an air pressure in the intake manifold. The electronic control unit is configured receive data from the one or more sensors and to activate a rate limit logic when the air temperature in the intake hose and the engine speed are greater than a temperature threshold and an engine speed threshold, respectively, and the air pressure in the intake manifold is less than a pressure threshold, causing the throttle to slow the rate at which the throttle opens based on the air temperature in the intake hose.