Automatic Braking with Engine Torque Inhibition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
After a collision, drivers may not have sufficient perception of their vehicle's state or environment to make safe decisions to avoid additional accidents, as they remain free to control the accelerator pedal.
Innovation Solution
An automatic braking method that combines wheel braking with engine torque inhibition, utilizing life situation analysis and environmental monitoring to trigger optimal deceleration and immobilize the vehicle to prevent further accidents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver is allowed to control the accelerator pedal after a collision, then the driver maintains operational freedom, but the risk of secondary accidents increases due to insufficient perception of vehicle state and environment
Solution Approach 1:
The system performs preliminary analysis of the life situation and environment after collision detection, before the driver can press the accelerator. The control computer automatically evaluates parameters and determines the appropriate response (braking, engine torque inhibition) in advance, eliminating the need for driver decision-making in this critical post-collision phase
Solution Approach 2:
The control computer acts as an intermediary between the driver's potential accelerator input and the vehicle's powertrain system. It monitors the accelerator pedal position and, when appropriate, inhibits engine torque delivery despite driver input, serving as a protective mediator that overrides driver action when safety concerns are detected
2Reliability
If automatic braking is activated after collision, then vehicle immobilization is achieved, but additional control systems and sensors are required
Solution Approach 1:
The control computer is designed to perform multiple functions: it manages normal braking operations, handles collision detection and response, analyzes life situations, and controls engine torque inhibition. By making the control computer universal and multi-functional, the patent avoids adding separate dedicated systems for each function, thereby reducing overall system complexity while maintaining comprehensive safety capabilities
Solution Approach 2:
The patent combines previously separate safety functions (brake control, collision detection, engine management) into an integrated system managed by a single control computer. The analysis unit merges environmental sensing, vehicle state monitoring, and decision-making algorithms into one cohesive system, reducing the number of separate components and interfaces required
Data Source
Figure 1
AI summary
The invention relates to a method for the automatic braking of a motor vehicle, implementing a function for the management of the longitudinal dynamics of the vehicle (10), whereby, following the detection of a collision between the vehicle and an obstacle, vehicle (12) braking is carried out using wheel brakes. The invention is characterised in that it also acts on the control of the traction motor of the vehicle (18) so that engine torque is not delivered to the drive wheels of the vehicle after the collision, regardless of the driver's wishes.