Predictive Charger Control for Vehicle Drivability and Load Peaks
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Solution Overview
Problem
Existing vehicle development aims to balance drivability, fuel efficiency, and reduced emissions, but achieving spontaneous engine response to accelerator inputs is challenging due to conflicting requirements that favor rapid torque increase, which is unfavorable for consumption and exhaust gas aftertreatment.
Innovation Solution
A hybrid vehicle system that uses a forecast-based control device to optimize mobility by strategically activating an additional electrical compressor, allowing for cost and weight-efficient design while minimizing power peaks and optimizing torque and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the engine torque is increased quickly to provide spontaneous acceleration response, then drivability is improved, but energy consumption increases and exhaust emissions worsen
Solution Approach 1:
The control device activates the additional charger device in advance based on predicted driving requirements. By forecasting future power demands using sensor data and prediction algorithms, the system prepares the charging system beforehand, allowing rapid torque response when needed without continuously running the charger at high power, thus improving drivability while reducing overall energy consumption
2Ease of operation
If the engine torque is increased quickly to provide spontaneous acceleration response, then drivability is improved, but exhaust emissions increase
Solution Approach 1:
The system uses prediction algorithms to anticipate driving requirements and activates the additional charger device in advance. This preliminary action allows the exhaust system to be prepared for optimal operation before high-torque demands occur, enabling rapid engine response while maintaining favorable conditions for exhaust gas aftertreatment and reducing emissions
3Power
If additional charger devices are activated to improve drivability, then power output increases, but load peaks occur in the vehicle electrical system
Solution Approach 1:
The control device activates the additional charger device in advance based on predicted driving requirements, allowing the electrical system to gradually accommodate the load rather than experiencing sudden peaks. This predictive approach enables better power management and reduces the complexity of electrical system design by avoiding the need for oversized components to handle peak loads
Solution Approach 2:
The system dynamically adjusts the activation and power level of the additional charger device based on real-time sensor data and predicted driving requirements. This dynamic control allows the electrical system to adapt to varying power demands smoothly, avoiding abrupt load peaks while maintaining the ability to deliver high power output when needed
Data Source
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AI summary
The invention relates to a motor vehicle (1), comprising: an internal combustion engine (110); a component (270), which influences the operational state of the internal combustion engine and has a changeable control variable; a sensor device (210), which is provided for sensing a vehicle- and/or surroundings- and/or environment-related state parameter and providing a data value that represents said state parameter; a setting device (220), which is provided for changing one of the changeable control variables of the one component; and a control device (200), which is designed to process the data values of the first sensor device and to transmit a signal to the setting device, wherein the control device is provided for receiving and processing the one provided vehicle- and/or surroundings- and/or environment-related state parameter; determining a state model by means of the state parameters, which state model has a parameter that characterizes the current vehicle behavior; calculating a vehicle behavior prediction by means of the state model; and deriving a control value or control set for controlling the setting device therefrom.