Vehicle Brake Control Voltage Boosting
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Solution Overview
Problem
Conventional automotive vehicle braking systems are limited by regulated voltage control, which restricts braking performance by maintaining a constant voltage output, thereby affecting braking response time and overall vehicle performance, especially during high-performance driving and autonomous deceleration scenarios.
Innovation Solution
A vehicle braking system that includes a power supply capable of operating in two modes: a first mode with a standard voltage and a second mode with a higher voltage, activated by a brake control system based on detected driving states, such as wheel speed and object detection, to improve braking response time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If regulated voltage control limits voltage to a standard level, then energy consumption is reduced and system stability is maintained, but braking response time increases and braking performance deteriorates
Solution Approach 1:
The power supply system dynamically switches between standard voltage mode and boosted voltage mode based on driving conditions. The brake control system detects high-performance driving states (such as emergency braking or high-speed deceleration) and triggers the power supply to output boosted voltage, enabling the brake assembly to respond faster while maintaining energy efficiency during normal operation
Solution Approach 2:
The system changes the voltage parameter from a fixed standard level to a variable level that can be boosted when needed. The power supply outputs a second voltage greater than the first standard voltage in response to a voltage level increase request signal, allowing the brake motor to operate at higher power levels for improved response time and braking performance during critical situations
2Device complexity
If constant voltage output is maintained, then system simplicity is preserved and control is easier, but braking response time increases and vehicle performance is limited
Solution Approach 1:
The brake control system proactively detects high-performance driving states and issues a voltage level increase request signal before the braking action is fully initiated. This preliminary voltage boost ensures that the brake assembly is ready to respond immediately when braking is applied, reducing overall response time without requiring complex real-time voltage adjustment during the braking event itself
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 system enhances braking performance by reducing braking response time, improving stopping distance and autonomous deceleration, and mitigating collision risks at various speeds while minimizing false object detection and deceleration delays.
Implementation Method 1
A power supply is in signal communication with the at least one brake assembly and is configured to operate in a first mode that outputs a first voltage and a second mode that outputs a second voltage that is greater than the first voltage
Implementation Method 2
At least one brake assembly is configured to brake the at least one wheel of the vehicle in response to an applied voltage
Data Source
AI summary
A vehicle includes at least one brake assembly configured to brake at least one wheel of the vehicle in response to an applied voltage. A power supply is in signal communication with the at least one brake assembly. The power supply is configured to operate in a first mode that outputs a first voltage and a second mode that outputs a second voltage greater than the first voltage. A brake control system is in signal communication with the at least one brake assembly and the power supply. The brake control system is configured to determine a driving state of the vehicle, and is configured to output a brake boost request signal to initiate the second mode of the power supply in response to detecting the driving state, wherein a braking response time of the at least one brake assembly is improved in response to applying the second voltage.