Engine Data Processor Powershift Reserve Configuration
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Solution Overview
Problem
Existing internal combustion engines lack a direct and efficient method to specify and adjust the powershift reserve, leading to time-consuming, costly configurations and potential irreversible damage if not handled correctly.
Innovation Solution
An engine data processor that includes a control unit and a powershift reserve module, which receives torque setpoints, powershift reserve setpoints, torque-limiting operating limit values, and operating variables to generate output signals that adjust control targets and determine control variables for the engine, thereby setting a powershift reserve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If powershift reserve is specified indirectly through combined formulation of target torque, target consumption, target air mass flow and maximum permissible exhaust gas emission limit value, then the engine can operate within safe limit value ranges, but the configuration process becomes time-consuming, costly and requires high expertise
Solution Approach 1:
The patent separates the powershift reserve specification from the complex combined formulation. Instead of configuring multiple parameters simultaneously (target torque, consumption, air mass flow, emission limits), the system allows direct specification of powershift reserve as an independent parameter, while the control unit automatically handles the other parameters to ensure safe operation within limit values.
Solution Approach 2:
The control unit acts as an intermediary that translates the directly specified powershift reserve into appropriate control variables. The control unit receives the simplified powershift reserve input and automatically determines the necessary control parameters (target torque, air mass flow, etc.) while ensuring all operating limits are respected, thereby eliminating the need for complex manual configuration.
2Adaptability or versatility
If powershift reserve is specified indirectly through multiple variables, then the engine control can be comprehensive, but the configuration becomes associated with high costs and requires lacking expertise
Solution Approach 1:
The control unit performs self-service by automatically determining and adjusting control variables based on the directly specified powershift reserve. Instead of requiring manual configuration of multiple interdependent parameters, the system automatically calculates appropriate target torque, air mass flow, and other control parameters while ensuring compliance with operating limits, thereby reducing configuration costs and expertise requirements.
Solution Approach 2:
The patent changes the parameter specification approach from indirect (multiple interdependent variables) to direct (powershift reserve as single independent parameter). The control unit then automatically adjusts the underlying control parameters (torque, consumption, air mass flow) to achieve the desired powershift reserve while maintaining comprehensive control capability and respecting all operating limits.
3Device complexity
If indirect formulation of powershift reserve is used, then existing control systems can be utilized, but the configuration process is complex and time-consuming
Solution Approach 1:
The control unit is pre-programmed with the logic to automatically determine control variables based on powershift reserve specifications. This preliminary preparation allows the system to rapidly configure powershift reserve by directly specifying the parameter, while the control unit automatically calculates and adjusts all necessary control parameters, significantly increasing configuration speed without requiring complex manual intervention.
Data Source
AI summary
An engine data processor for setting a powershift reserve for an internal combustion engine includes: a control unit to adhere to a torque-limiting operating limit value and including a control target; a powershift reserve module for determining the powershift reserve for the torque-limiting operating limit value, the powershift reserve module to: receive a torque setpoint, a powershift reserve setpoint, the torque-limiting operating limit value, and an operating variable; generate an output signal from the torque setpoint, the powershift reserve setpoint, the torque-limiting operating limit value, and the operating variable which have been received; and issue the output signal to the control unit; wherein the control unit is to: adjust the control target by taking into account the output signal, so that the powershift reserve corresponds with the powershift reserve setpoint; and determine a control variable for the internal combustion engine; issue the control variable for the internal combustion engine.