Remote Start Control for Manual Transmission Vehicles
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Solution Overview
Problem
Remote starting of vehicles equipped with manual transmission is not feasible due to unreliable parking braking force, as repetitive operation of the parking lever leads to durability degradation of the parking system, potentially causing the vehicle to move when parked on a ramp, endangering people or objects.
Innovation Solution
A control method that senses the parking lever operating force, road inclination, and driving distance, and compares it to a corrected reference force to determine if remote starting is possible, using sensors like a parking lever stroke sensor and inclination sensor to compensate for reduced braking force and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the parking lever is repetitively operated to maintain parking brake force, then the initial parking reliability is maintained, but durability degradation occurs causing reduced parking braking force
Solution Approach 1:
The system performs preliminary detection of parking lever operating force and operating times before remote starting is executed. By measuring these parameters in advance and comparing them against threshold values, the system proactively identifies degradation conditions and prevents unsafe remote starting operations, rather than reacting after degradation occurs
Solution Approach 2:
The system continuously monitors parking lever operating force through a force sensor and operating times through a control unit that tracks lever movements. This feedback mechanism provides real-time information about parking system condition, enabling dynamic assessment of whether remote starting should be permitted based on current system state
2Ease of operation
If remote starting is enabled in vehicles with manual transmission, then convenience is improved, but safety risk increases due to unreliable parking brake
Solution Approach 1:
Before enabling remote starting, the system performs preliminary checks of parking lever operating force and operating times. These pre-conditions ensure that the parking brake is sufficiently reliable before allowing remote starting operations, preventing unsafe scenarios where the vehicle might move
Solution Approach 2:
The control unit acts as an intermediary between the remote starting request and the actual engine start. It mediates by evaluating sensor data about parking system condition and making the final decision whether to permit remote starting, thus preventing direct activation when safety conditions are not met
3Measurement precision
If additional sensors are added to detect parking lever force and operating times, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The force sensor serves multiple functions: it detects parking lever operating force for degradation assessment, provides feedback for control decisions, and can potentially monitor other parking system parameters. This multi-functionality reduces the need for separate dedicated sensors for each measurement task
Data Source
AI summary
A system and method for controlling the remote starting of a vehicle are provided to determine whether the remote starting is possible by comparing a parking lever operating force measured by a sensor with a reference parking lever operating force corrected in consideration of the durability degradation of a parking system. The method includes sensing a driving distance of the vehicle, operating times of a parking lever, a road inclination, and a parking lever operating force, when the vehicle is parked. Whether the remote starting is possible is determined by comparing a magnitude of the parking lever operating force with a magnitude of a reference parking lever operating force.