Integrated Parking Lock and Brake Control for Slope-Safe Parking
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Solution Overview
Problem
Current motor vehicles with electronically controllable parking locks and brakes often require multiple control elements and lack driver adaptability, leading to confusion and inadequate security when parking on slopes, with existing systems not allowing individual adjustment to environmental conditions.
Innovation Solution
A single central control element, the 'park vehicle safely' function, integrates the parking lock and brake systems, allowing automatic decision-making based on environmental conditions while offering manual intervention options, using a central electronic control unit to coordinate the activation of both systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single central control element integrates both parking lock and parking brake control, then operating comfort is improved and device complexity is reduced, but driver adaptability to different environmental conditions deteriorates
Solution Approach 1:
The system provides dynamic adaptability by allowing the driver to select between different parking modes (first mode with parking brake only, second mode with both parking brake and parking lock). The control element adapts its function based on driver selection and environmental conditions, resolving the contradiction between simplified operation and adaptability.
2Ease of operation
If the system automatically decides activation type without manual selection, then ease of operation is improved, but reliability in adverse conditions deteriorates
Solution Approach 1:
The system incorporates feedback mechanisms by monitoring environmental conditions (slope, temperature, obstacles) and providing this information to the driver through the display. The driver can then make an informed decision about which parking mode to select, ensuring reliability while maintaining ease of operation.
3Reliability
If the parking brake is activated first before the parking lock, then component protection is improved by preventing tensioning, but activation time increases
Solution Approach 1:
The system performs preliminary action by automatically activating the parking brake before the parking lock when in the second mode. This preliminary activation of the parking brake prevents tensioning of the parking lock mechanism, protecting components while managing the activation sequence efficiently.
4Adaptability or versatility
If multiple control elements are provided for parking lock and brake, then adaptability is improved, but device complexity increases
Solution Approach 1:
The single central control element performs multiple functions by integrating control of both the parking lock and parking brake systems. The element can activate either system individually or both together based on the selected mode, eliminating the need for separate control elements while maintaining adaptability.
Data Source
AI summary
A motor vehicle has an electronically controllable parking lock and an electronically controllable parking brake, which can be controlled individually or in combination. A device having an electronic control unit and a central operating element associated with the parking lock and the parking brake is provided. When the motor vehicle is at a standstill and the central operating element is actuated, the parking lock and the parking brake can be controlled in a specific type of parking-lock and/or parking-brake activation. In a first specific type, during a first actuation of the central operating element, at least the parking brake is automatically activated first. If the central operating element is then re-actuated within a predefined time window, or if the central operating element remains actuated for a predefined minimum time period, the driver is offered at least one possibility of manually selecting a specific type of parking-lock and/or parking-brake activation.