A sliding table oil position adjusting method and system for a multi-comprehensive vibration test system

Abstract

The present application relates to a kind of multi-comprehensive vibration test system sliding table oil liquid position adjusting method and system.For the problem that traditional method does not consider the temperature change of oil liquid in multi-comprehensive vibration test system, adjusting lag and big liquid level fluctuation, the present application proposes three-level control logic: first, based on the upper and lower limit of sliding table oil liquid position, safety judgment and emergency adjustment are carried out;Then, the influence of ideal temperature and curve slope prediction temperature on liquid level is combined, and pre-adjustment is completed;Finally, according to the difference between actual temperature and ideal temperature of oil liquid, the opening of oil liquid position adjusting electromagnetic proportional valve is corrected.The present application effectively improves the control precision and stability of sliding table oil liquid position in multi-comprehensive vibration test system, reduces the failure risk of sliding table hydraulic system, can actively respond to the liquid level fluctuation caused by temperature change, and ensures the operation reliability of vibration table sliding table.

Description

Technical Field

[0001] This invention relates to the field of multi-vibration test system technology, and in particular to a method and system for adjusting the oil position of a slide table in a multi-vibration test system. Background Technology

[0002] Multi-vibration testing systems are core equipment for simulating product reliability under complex vibration and environmental conditions, and are widely used in high-precision, high-reliability testing fields such as aerospace, automotive manufacturing, and electronic equipment. In this system, the slide table, as a key actuator simulating horizontal vibration of the product, directly determines the validity and reliability of the test due to its motion accuracy and stability. The hydraulic system, as the power source for the slide table, transmits power and controls its movement through hydraulic fluid. Stable control of the hydraulic fluid position within the slide table is fundamental to ensuring stable hydraulic system pressure and accurate slide table operation.

[0003] In actual operation, the hydraulic position control of the slide table faces significant technical challenges, mainly in the following aspects:

[0004] First, multi-vibration tests are often accompanied by drastic or periodic changes in the ambient temperature inside the test chamber. The viscosity of hydraulic fluid is extremely sensitive to temperature: as temperature rises, viscosity decreases, fluidity increases, and flow rate accelerates; as temperature falls, viscosity rises, fluidity weakens, and flow rate slows. This change in fluid viscosity caused by temperature fluctuations directly alters the flow characteristics within the hydraulic system, thereby disrupting the inlet / outlet oil balance required to maintain the set fluid level and causing level fluctuations.

[0005] Secondly, traditional methods for controlling the hydraulic position of a slide table often employ on / off control based on a fixed threshold or electromagnetic proportional valve opening control with preset fixed parameters. These methods do not fully consider the dynamic impact of temperature changes on hydraulic flow characteristics, resulting in a simplistic and lagging control strategy. For example, when temperature changes cause changes in hydraulic flow rate, the electromagnetic proportional valve with a fixed opening cannot compensate for the flow rate change in real time, causing the hydraulic level to oscillate continuously around the set threshold. This frequent fluctuation not only leads to unstable hydraulic system pressure, affecting the vibration accuracy and stability of the slide table, but also poses a series of safety hazards over long-term operation: too low a hydraulic level may cause the hydraulic pump to suck in cavitation, resulting in cavitation and wear; too high a hydraulic level may cause hydraulic leakage, poor system heat dissipation, and further increase in oil temperature, creating a vicious cycle.

[0006] Therefore, there is an urgent need for a control method that can comprehensively respond to temperature changes and achieve precise adaptive adjustment of liquid level in order to improve the reliability, stability and testing accuracy of the slide table operation in a multi-integrated vibration test system. Summary of the Invention

[0007] The purpose of this invention is to overcome the problems in the prior art and provide a method and system for adjusting the position of the slide oil in a multi-integrated vibration test system. Through a three-level control logic of "initial safety judgment - pre-adjustment based on the slope of the ideal temperature curve - actual temperature feedback correction", the opening of the electromagnetic proportional valve is dynamically adjusted to predict and compensate for the influence of temperature changes on the oil flow rate in advance, thereby achieving accurate and stable control of the slide oil position.

[0008] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a method for adjusting the oil position of a slide table in a multi-integrated vibration test system, comprising the following steps:

[0009] Step S1: Monitor the liquid level sensor readings at intervals. Monitor the liquid level sensor once every time, and record the value as follows: and judge Does it meet the requirements? or ;

[0010] like or Then proceed to step S2;

[0011] like Then proceed to step S3; where: To the upper limit of the safe liquid level, The lower limit of the safe liquid level;

[0012] Step S2, if If this occurs, the upper limit liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the maximum until... Clear the upper limit liquid level alarm, then adjust the opening of the electromagnetic proportional valve to... And return to step S1, where: This is the reference opening degree for the electromagnetic proportional valve;

[0013] like If this occurs, a lower liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the minimum until... Clear the lower liquid level alarm, then adjust the opening of the electromagnetic proportional valve to... And return to step S1;

[0014] Step S3, Judgment Does it meet the requirements? ;

[0015] like If so, then repeat step S3;

[0016] like Then proceed to step S4; where: This is the median safe liquid level. , The safe liquid level threshold;

[0017] Step S4: Pre-adjust the liquid level by combining the ideal temperature and the ideal temperature slope, and then proceed to step S5;

[0018] Step S5: Monitor the temperature sensor readings at intervals. The temperature sensor reading is recorded once every time. Calculate the difference between the actual temperature of the oil and the ideal temperature in the test chamber. , The calculation formula is Then proceed to step S6;

[0019] Step S6, Judgment Does it meet the requirements? ,in: Temperature difference threshold;

[0020] like Then the opening degree of the electromagnetic proportional valve remains unchanged;

[0021] like The opening degree of the electromagnetic proportional valve after adjustment in step S4 Based on this, reduce the opening degree of the electromagnetic proportional valve ,in: This is the absolute value of the maximum allowable temperature difference.

[0022] Furthermore, in step S4, the liquid level is pre-adjusted by combining the ideal temperature and the ideal temperature slope, and the specific adjustment steps are as follows:

[0023] Record the ideal temperature of the test chamber at this time as . Let the slope of the ideal temperature curve of the test chamber at this time be denoted as . Let the upper limit of the optimal operating temperature threshold of the oil be . Let the lower limit of the optimal operating temperature threshold of the oil be . ;

[0024] (1) If The opening degree of the electromagnetic proportional valve after adjustment ,in: This is a temperature range coefficient. Set an upper limit threshold for the absolute value of the slope of the ideal temperature curve change in the test chamber; It is a saturation function;

[0025] (2) If Then the opening degree of the electromagnetic proportional valve remains unchanged;

[0026] (3) If The opening degree of the electromagnetic proportional valve after adjustment By introducing ideal temperature and temperature change trends as pre-adjustment criteria, the impact of temperature on oil flow rate can be identified in advance, effectively reducing the lag in level regulation caused by sudden temperature changes and enhancing the predictability of level control.

[0027] Furthermore, the interval time The value range is 2 minutes to 3 minutes. This monitoring frequency ensures real-time performance while avoiding frequent sensor triggering, which is beneficial for stable system operation and reduces the data processing burden.

[0028] Further, in step S2, the opening degree of the electromagnetic proportional valve The value range is 45% to 55%. This baseline opening range can maintain the normal flow rate of the system while leaving sufficient operating space for subsequent temperature-based dynamic adjustment.

[0029] Further, in step S3, the safe liquid level threshold The value range is 0.5cm to 2cm. This threshold range allows for small fluctuations in the liquid level to reduce the frequency of adjustments, while ensuring that the liquid level does not deviate too far from the safe median value, thus balancing control accuracy and system stability.

[0030] Furthermore, the upper limit of the optimal operating temperature threshold for the oil. The value range is 40℃~50℃;

[0031] The lower limit of the optimal operating temperature threshold of the oil The value range is 5℃~10℃;

[0032] The temperature range coefficient The value range is 3 to 5;

[0033] The upper limit threshold for the absolute value of the slope of the ideal temperature curve of the test chamber is set. The value range is 10℃ / min to 20℃ / min. Reasonable setting of temperature-related thresholds and coefficients ensures that the pre-adjustment algorithm can respond sensitively within the normal operating temperature range of the oil and provides appropriate compensation for rapid temperature changes.

[0034] Furthermore, Defined as , , It is a constant; , The value depends on The categories of physical quantities; for and The saturation function in The value range is 25%~30%. The value range is 35% to 40%;

[0035] when ,for The saturation function in The value range is 12%~15%. The value range is 17% to 20%;

[0036] when ,for The saturation function in The value range is -20% to -17%. The value range is -15% to -12%. By setting differentiated saturation limits for different adjustment terms, it prevents the single adjustment amount from being too large or too small, making the pre-adjustment process smooth and stable, and avoiding system oscillation.

[0037] Further, in step S6, the temperature difference threshold The value range is 10℃~30℃; the absolute value of the maximum allowable temperature difference. The value range is 50℃~80℃. Setting a temperature difference threshold avoids unnecessary frequent corrections under small temperature deviations, while setting a maximum allowable temperature difference provides a basis for adjustment range under extreme conditions, ensuring the robustness of the system.

[0038] Furthermore, Defined as , , It is a constant; , The value depends on Categories of physical quantities;

[0039] when For step S6 The saturation function in The value range is 2% to 5%. The value range is 7% to 10%;

[0040] when For step S6 The saturation function in The value range is -10% to -7%. The value range is -5% to -2%. The final correction amount is saturated and limited to ensure that the adjustment force of the actual temperature feedback correction link is gentle and controllable, and smoothly connected with the pre-adjustment link, thus improving the overall accuracy and stability of liquid level control.

[0041] The present invention also provides a slide oil position adjustment system for a multi-integrated vibration test system, comprising: a slide, a T-shaped guide rail, a lower limit liquid level sensor, an upper limit liquid level sensor, a temperature sensor, an oil outlet pipeline, an electromagnetic proportional valve, and a test chamber;

[0042] The slide table is mounted on the T-shaped guide rail;

[0043] The lower limit liquid level sensor is used to monitor the lower limit liquid level, and the upper limit liquid level sensor is used to monitor the upper limit liquid level.

[0044] The temperature sensor is used to monitor the actual temperature of the oil.

[0045] The electromagnetic proportional valve is installed on the oil outlet pipe and is used to regulate the oil flow rate;

[0046] The test chamber is used to provide the test environment and contains a pre-stored ideal temperature profile.

[0047] The system is configured to execute the steps of the slide oil position adjustment method of the multi-integrated vibration test system. Through sensor collaboration and closed-loop control, the system achieves adaptive and high-precision adjustment of the slide oil position, effectively suppressing level changes caused by temperature fluctuations and improving the reliability and accuracy of the vibration test.

[0048] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0049] 1. This invention introduces the ideal temperature of the test chamber and the slope of the ideal temperature curve as the core prediction basis. By accurately identifying the temperature change trend through the magnitude of the ideal temperature and the slope, the influence of the trend on the oil flow rate can be predicted in advance, and the opening of the electromagnetic proportional valve can be adjusted accordingly to effectively avoid the lag in liquid level adjustment caused by temperature changes and ensure the dynamic stability of the liquid level during the operation of the slide.

[0050] 2. Based on the pre-adjustment performed using the ideal temperature and the slope of the ideal temperature curve, this invention further introduces an actual temperature correction strategy. The opening of the electromagnetic proportional valve is adjusted by calculating the difference between the actual oil temperature and the ideal temperature of the test chamber. Compared to the limitations of traditional methods that rely solely on a single adjustment, this invention constructs a dual control guarantee of "pre-adjustment - actual temperature correction," effectively eliminating errors caused by deviations between the actual temperature change and the ideal curve during the pre-adjustment stage. This not only compensates for potential deviations in pre-adjustment but also further improves the accuracy of liquid level control, ensuring that the liquid level always matches the testing accuracy requirements of the vibration table slide.

[0051] 3. This invention employs a three-level control logic of "initial liquid level determination - pre-adjustment - actual temperature correction". By adjusting the opening degree according to upper / lower limit liquid level scenarios, different ideal temperatures and the slope of the ideal temperature curve, and actual temperature correction, the electromagnetic proportional valve opening adjustment can not only cope with the influence of temperature changes on oil flow rate, but also accurately match the liquid level deviation correction requirements. This effectively solves the problems of unstable flow and poor accuracy caused by traditional adjustment strategies, and significantly improves the stability and adjustment accuracy of liquid level control. Attached Figure Description

[0052] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0053] Figure 1 This is a schematic diagram of the overall principle of the present invention.

[0054] Figure 2 This is a schematic diagram of the structural principle of the present invention.

[0055] Figure 3 This is the control flowchart of the present invention.

[0056] Figure 4 This is a schematic diagram of the electromagnetic proportional valve opening adjustment principle.

[0057] The attached diagram is labeled as follows: 1. Slide table; 2. T-shaped guide rail; 3. Lower limit liquid level sensor; 4. Upper limit liquid level sensor; 5. Lower limit liquid level; 6. Upper limit liquid level; 7. Temperature sensor; 8. Oil outlet; 9. Oil outlet pipeline; 10. Electromagnetic proportional valve; 11. Test chamber. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0059] like Figure 1 and Figure 2As shown, this invention provides a multi-stage vibration test system with a slide table oil position adjustment system, including a slide table 1, a T-shaped guide rail 2, a lower limit liquid level sensor 3, an upper limit liquid level sensor 4, a temperature sensor 7, an oil outlet pipe 9, an electromagnetic proportional valve 10, and a test chamber 11. The slide table 1 is mounted on the T-shaped guide rail 2 and can move horizontally along it. The lower limit liquid level sensor 3 and the upper limit liquid level sensor 4 are used to monitor the lower limit liquid level 5 and the upper limit liquid level 6 of the oil, respectively. The temperature sensor 7 is immersed in the oil to monitor the actual temperature of the oil in real time. The electromagnetic proportional valve 10 is installed on the oil outlet pipe 9, and its opening degree is adjusted to control the outflow rate of the oil, thereby adjusting the oil position. The test chamber 11 provides the testing environment for the entire system, and its control system has a pre-stored ideal temperature curve required for the current test.

[0060] like Figures 3-4 As shown, the present invention also provides a method for adjusting the slide oil position in a multi-integrated vibration test system, which is executed by the above system and specifically includes the following steps:

[0061] Step 1: Monitor the liquid level sensor readings at intervals. Time monitoring once, The value range is 2min~3min, and the liquid level sensor value is recorded as... and judge Does it meet the requirements? or ,in: To the upper limit of the safe liquid level, To ensure the lower limit of the safe liquid level, if or If so, proceed to step one; if Then proceed to step three;

[0062] Step 2, if If this occurs, the upper limit liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the maximum until... To clear the upper limit liquid level alarm, adjust the opening of the electromagnetic proportional valve to... And return to step S1, where: This is the reference opening degree for the electromagnetic proportional valve. The value range is 45% to 55%;

[0063] like If this occurs, a lower liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the minimum until... To clear the lower liquid level alarm, adjust the opening of the electromagnetic proportional valve to... And return to step one;

[0064] Step 3: Judgment Does it meet the requirements? ,in: This is the median safe liquid level. , For safe liquid level threshold, The value range is 0.5cm to 2cm. If so, repeat step three; Then proceed to step four;

[0065] Step 4: Pre-adjust the liquid level based on the ideal temperature and its slope, then proceed to Step 5; the specific adjustment steps are as follows: Record the ideal temperature of the test chamber at this point as... Let the slope of the ideal temperature curve of the test chamber at this time be denoted as . Let the upper limit of the optimal operating temperature threshold of the oil be . , The value range is 40℃~50℃, and the lower limit of the optimal operating temperature threshold for the oil is denoted as . , The value range is 5℃~10℃;

[0066] (1) If The opening degree of the electromagnetic proportional valve after adjustment ,in: This is a temperature range coefficient. The value range is 3 to 5. The upper limit threshold is set for the absolute value of the slope of the ideal temperature curve of the test chamber. The value range is 10℃ / min to 20℃ / min; It is a saturation function. Defined as , , It is a constant. , The value depends on Categories of physical quantities middle The value range is 25%~30%. The value range is 35%~40%; when , middle The value range is 12%~15%. The value range is 17%~20%; when , middle The value range is -20% to -17%. The value range is -15% to -12%;

[0067] (2) If Then the opening degree of the electromagnetic proportional valve remains unchanged;

[0068] (3) If The opening degree of the electromagnetic proportional valve after adjustment , middle The value range is 25%~30%. The value range is 35% to 40%;

[0069] Step 5: Monitor the temperature sensor readings at regular intervals. The temperature sensor reading is recorded once every time. Calculate the difference between the actual temperature of the oil and the ideal temperature in the test chamber. , The calculation formula is Then proceed to step six;

[0070] Step Six: Judgment Does it meet the requirements? ,in: Temperature difference threshold The value range is 10℃~30℃. If the opening of the electromagnetic proportional valve remains unchanged, then the opening of the valve remains unchanged; if The opening degree of the electromagnetic proportional valve after adjustment in step S4 Further reduce the opening degree of the electromagnetic proportional valve based on the existing structure. ,in: The absolute value of the maximum allowable temperature difference. The value range is 50℃~80℃; when , middle The value range is 2% to 5%. The value range is 7% to 10%; when , middle The value range is -10% to -7%. The value range is -5% to -2%.

[0071] The system controls the oil level according to the final calculated opening degree of the electromagnetic proportional valve, thereby achieving dynamic and precise adjustment of the oil position on the slide. This invention, through a three-level control logic, effectively addresses changes in oil viscosity and flow rate caused by temperature variations, significantly improving the stability and accuracy of level control.

[0072] In summary, the specific implementation method provided by this invention achieves intelligent, dynamic, and precise adjustment of the slide oil position by executing a complete three-level closed-loop control process of "initial liquid level safety judgment - pre-adjustment based on ideal temperature curve - actual temperature feedback correction". The core of this method lies in not only using upper and lower limit thresholds (… , ) and safe liquid level threshold ( It has established a basic safety protection and coarse adjustment mechanism, and more creatively introduced the ideal temperature of the test chamber. and its slope This serves as a key basis for feedforward pre-regulation, thus proactively compensating for the potential impact of temperature changes on oil viscosity and flow rate. Subsequently, the actual oil temperature is collected in real time. With ideal temperature The difference Feedback fine-tuning was performed, forming a composite control mode of "feedforward prediction + feedback correction". This was achieved by rationally setting parameters for each stage (such as...). , , , , , , , And apply the saturation function ( By limiting the adjustment range, system overshoot and oscillation are effectively avoided. This invention fundamentally solves the problems of lag, large fluctuations, and poor accuracy in liquid level regulation caused by neglecting temperature factors in traditional methods, significantly improving the stability and reliability of hydraulic system operation and providing a solid guarantee for the smooth conduct of high-precision vibration tests.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for adjusting the oil position of a slide table in a multi-stage vibration testing system, characterized in that, Includes the following steps: Step S1: Monitor the liquid level sensor readings at intervals. Monitor the liquid level sensor once every time, and record the value as follows: and judge Does it meet the requirements? or ; like or Then proceed to step S2; like Then proceed to step S3; where: To the upper limit of the safe liquid level, The lower limit of the safe liquid level; Step S2, if If this occurs, the upper limit liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the maximum until... Clear the upper limit liquid level alarm, then adjust the opening of the electromagnetic proportional valve to... And return to step S1, where: This is the reference opening degree for the electromagnetic proportional valve; like If this occurs, a lower liquid level alarm will be triggered, and the opening of the electromagnetic proportional valve will be adjusted to the minimum until... Clear the lower liquid level alarm, then adjust the opening of the electromagnetic proportional valve to... And return to step S1; Step S3, Judgment Does it meet the requirements? ; like If so, then repeat step S3; like Then proceed to step S4; where: This is the median safe liquid level. , The safe liquid level threshold; Step S4: Pre-adjust the liquid level by combining the ideal temperature and the ideal temperature slope, and then proceed to step S5; Step S5: Monitor the temperature sensor readings at intervals. The temperature sensor reading is recorded once every time. Calculate the difference between the actual temperature of the oil and the ideal temperature in the test chamber. , The calculation formula is Then proceed to step S6; Step S6, Judgment Does it meet the requirements? ,in: Temperature difference threshold; like Then the opening degree of the electromagnetic proportional valve remains unchanged; like The opening degree of the electromagnetic proportional valve after adjustment in step S4 Based on this, reduce the opening degree of the electromagnetic proportional valve ,in: The absolute value of the maximum allowable temperature difference; In step S4, the liquid level is pre-adjusted by combining the ideal temperature and the ideal temperature slope. The specific adjustment steps are as follows: Record the ideal temperature of the test chamber at this time as . Let the slope of the ideal temperature curve of the test chamber at this time be denoted as . Let the upper limit of the optimal operating temperature threshold of the oil be . Let the lower limit of the optimal operating temperature threshold of the oil be . ; (1) If The opening degree of the electromagnetic proportional valve after adjustment ,in: This is a temperature range coefficient. Set an upper limit threshold for the absolute value of the slope of the ideal temperature curve change in the test chamber; It is a saturation function; (2) If Then the opening degree of the electromagnetic proportional valve remains unchanged; (3) If The opening degree of the electromagnetic proportional valve after adjustment ; Defined as , , It is a constant; , The value depends on The categories of physical quantities; for and The saturation function in The value range is 25%~30%. The value range is 35% to 40%; when ,for The saturation function in The value range is 12%~15%. The value range is 17% to 20%; when ,for The saturation function in The value range is -20% to -17%. The value range is -15% to -12%; In step S6, the temperature difference threshold The value range is 10℃~30℃; the absolute value of the maximum allowable temperature difference. The value range is 50℃~80℃.

2. The method for adjusting the slide oil position in a multi-stage vibration test system according to claim 1, characterized in that, The interval time The value range is 2 min to 3 min.

3. The method for adjusting the slide oil position in a multi-stage vibration test system according to claim 1, characterized in that, In step S2, the opening degree of the electromagnetic proportional valve The value range is 45% to 55%.

4. The method for adjusting the slide oil position of a multi-integrated vibration test system according to claim 1, characterized in that, In step S3, the safe liquid level threshold The value range is 0.5cm to 2cm.

5. The method for adjusting the slide oil position in a multi-stage vibration test system according to claim 1, characterized in that, The upper limit of the optimal operating temperature threshold of the oil The value range is 40℃~50℃; The lower limit of the optimal operating temperature threshold of the oil The value range is 5℃~10℃; The temperature range coefficient The value range is 3 to 5; The upper limit threshold for the absolute value of the slope of the ideal temperature curve of the test chamber is set. The value range is 10℃ / min to 20℃ / min.

6. The method for adjusting the slide oil position in a multi-stage vibration test system according to claim 1, characterized in that, Defined as , , It is a constant; , The value depends on Categories of physical quantities; when For step S6 The saturation function in The value range is 2% to 5%. The value range is 7% to 10%; when For step S6 The saturation function in The value range is -10% to -7%. The value range is -5% to -2%.

7. A slide oil position adjustment system for a multi-integrated vibration test system, used to implement the method as described in any one of claims 1-6, characterized in that, include: Slide table (1), T-shaped guide rail (2), lower limit liquid level sensor (3), upper limit liquid level sensor (4), temperature sensor (7), oil outlet pipeline (9), electromagnetic proportional valve (10) and test chamber (11). The slide (1) is mounted on the T-shaped guide rail (2); The lower limit liquid level sensor (3) is used to monitor the lower limit liquid level (5), and the upper limit liquid level sensor (4) is used to monitor the upper limit liquid level (6). The temperature sensor (7) is used to monitor the actual temperature of the oil. The electromagnetic proportional valve (10) is installed on the oil outlet pipeline (9) and is used to regulate the oil flow rate; The test chamber (11) is used to provide a test environment and contains a pre-stored ideal temperature curve; The system is configured to perform the steps of the adjustment method according to any one of claims 1-6.

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