Brake Pressure Compensation Control for Temperature-Stable Pedal Response
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Solution Overview
Problem
Existing brake systems face issues with varying braking performance due to temperature-dependent pedal force and pressure variations, leading to increased manufacturing costs and space requirements due to redundant hardware installations.
Innovation Solution
A brake system that includes a pedal force detector, pressure detector, motor, and processor to acquire compensation pressure information, adjust motor control based on temperature and pressure differences, and generate a consistent braking force by compensating for target pressure variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant electronic control units are installed for different functions, then system reliability is improved, but manufacturing costs and occupied area increase
Solution Approach 1:
The patent combines multiple electronic control units (power supplier controller, brake controller, stability control unit) into a single integrated electronic control unit. This consolidation maintains the reliability benefits of having multiple control functions while eliminating the need for separate housings and reducing the total occupied area in the vehicle.
Solution Approach 2:
The integrated electronic control unit is designed to perform multiple functions simultaneously - power management, brake control, and electronic stability control. This multi-functional approach allows one control unit to replace several dedicated units, reducing space requirements while maintaining system reliability through comprehensive control capabilities.
2Reliability
If multiple separate electronic control units are manufactured and mounted, then functional reliability is improved, but manufacturing time and manpower requirements increase
Solution Approach 1:
By merging multiple separate electronic control units into a single integrated unit, the patent reduces the number of manufacturing steps. Instead of manufacturing and mounting multiple separate housings and control units, only one integrated unit needs to be manufactured and installed, significantly improving manufacturing efficiency while maintaining functional reliability.
3Device complexity
If integrated dynamic brake is used to reduce hardware redundancy, then manufacturing costs and space requirements are reduced, but braking performance varies with external temperature
Solution Approach 1:
The integrated electronic control unit incorporates feedback mechanisms that monitor braking conditions and external temperature. Based on this feedback, the controller dynamically adjusts control parameters to compensate for temperature-induced variations in braking performance, ensuring consistent braking behavior across different thermal conditions while maintaining the simplified integrated hardware architecture.
Solution Approach 2:
The patent employs parameter changes in the control algorithm to adapt to varying external temperatures. The electronic control unit modifies control parameters such as motor drive signals and pressure control settings based on detected temperature conditions, thereby maintaining consistent braking performance despite environmental temperature variations and the reduced hardware redundancy.
4Reliability
If separate housings are manufactured for each electronic control unit, then functional isolation is improved, but manufacturing complexity and time requirements increase
Solution Approach 1:
The patent merges multiple separate housings into a single integrated housing that accommodates all electronic control functions. This eliminates the need to manufacture and assemble multiple separate housings, greatly simplifying the manufacturing process. The integrated design maintains functional isolation through internal partitioning and signal separation within the single housing, preserving reliability while improving ease of manufacture.
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
Ensures consistent braking performance across temperature changes, reduces manufacturing costs by integrating redundant hardware, and minimizes space requirements, enhancing user satisfaction and product competitiveness.
Implementation Method 1
a motor configured to provide a pressure of a pressurizing medium to the wheel cylinder
Data Source
AI summary
The present disclosure relates to a brake system and a vehicle having the same.The brake system includes a pedal force detector configured to output a pedal force signal corresponding to pressing of a brake pedal of a vehicle, a pressure detector configured to output a pressure signal corresponding to a pressure of a flow path connected to a wheel cylinder of the vehicle, a motor configured to provide a pressure of a pressurizing medium to the wheel cylinder, and a processor configured to acquire pressure information of the flow path based on the pressure signal of the pressure detector when receiving the pedal force signal of the pedal force detector, acquire a difference value between the pressure of the flow path and a target pressure corresponding to the pedal force signal based on the pressure information of the flow path and pre-stored target pressure information, acquire compensation pressure information based on the pressure information of the flow path and the pre-stored target pressure information when the acquired difference value is greater than or equal to a reference value, and control the motor based on the acquired compensation pressure information.