Vehicle Movement Control Apparatus with Delay Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle movement control systems lack a method for properly setting control requirement values for multiple control objects, leading to inefficiencies in vehicle movement control, particularly due to unaddressed stationary shortages and response delays.
Innovation Solution
A vehicle movement control apparatus that includes a first requirement value setting unit, estimating units, and a calculating unit to set and adjust control requirement values for multiple control objects based on input control target values, estimating movement values, and calculating delay amounts to ensure ideal vehicle movement by supplementing control amounts that cannot be responded by individual control objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If control requirement values are set without considering stationary shortage and response delay, then the control system is simple, but the vehicle movement control accuracy deteriorates
Solution Approach 1:
The system performs preliminary calculations of stationary shortage and response delay before finalizing control requirement values. The calculating unit computes these parameters in advance based on control target values and control object characteristics, allowing the control system to proactively compensate for expected deficiencies rather than reacting to them afterward.
Solution Approach 2:
The control requirement value is segmented into multiple components: the control target value, the stationary shortage amount, and the response delay amount. By dividing the control requirement value setting process into these distinct segments, the system can independently calculate and optimize each component's contribution to the final control value, improving overall accuracy without overwhelming complexity.
2Adaptability or versatility
If multiple control objects are used to control vehicle movement, then the control coverage is improved, but the coordination difficulty increases
Solution Approach 1:
The system incorporates feedback mechanisms where the calculated stationary shortage and response delay from each control object are fed back into the control requirement value setting process. This feedback loop allows the system to continuously adjust and coordinate control requirements across multiple control objects, ensuring they work together effectively to achieve the desired vehicle movement.
Solution Approach 2:
The control system applies a universal coordination method that can be used across different control objects (steering, braking, acceleration). The same calculation framework for determining control requirement values based on stationary shortage and response delay is universally applied to each control object, simplifying the coordination process despite the diversity of control mechanisms.
3Manufacturing precision
If control requirement values are set without calculating response delay, then the calculation process is fast, but the control timing accuracy deteriorates
Solution Approach 1:
Response delay characteristics of control objects are determined in advance and stored as pre-characterized data. When control requirement values need to be set, the system retrieves these pre-determined response delay values rather than calculating them from scratch, significantly reducing computation time while maintaining timing accuracy.
Solution Approach 2:
The system transforms the complex dynamic response delay calculation into a simpler parameter lookup and adjustment process. By characterizing control objects in terms of their response delay parameters beforehand, the system can quickly adjust control requirement values using these parameters without performing complex real-time calculations.
Data Source
AI summary
A vehicle movement control apparatus for setting control requirement values for a plurality of control objects controlling movement of a vehicle, if control target values for movement of the vehicle are input, the apparatus includes: a first requirement value setting unit setting a first control requirement value for a first control object; a first estimating unit acquiring a first movement estimated value if the first control object is activated based on the first control requirement value; a calculating unit calculating an estimated delay amount which is a shortage amount generated based on response delay of the first control object; a second requirement value setting unit setting a second control requirement value for a second control object, based on the result of the calculation; and a second estimating unit acquiring a second movement estimated value if the second control object is activated based on the second control requirement value.