Vehicle interior environment control system

• US 20080147270A1
• Filed: 12/11/2007
• Published: 06/19/2008
• Est. Priority Date: 12/15/2006
• Status: Abandoned Application

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Sakane, Hiroyuki, Takehisa, Satoshi
• Application Number:
  US12/000,286
• Publication Number:
  US 20080147270A1
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60H 1/00792 Arrangement of detectors B60H1/00742, B60H1/0075, B60H1/00785 take precedence
• CPC Class Codes: B60H 1/00864 Ventilators and damper doors

Abstract

A vehicle interior environment control system includes a plurality of environment adjustment sections adapted to operate in cooperation with each other so as to control optimization of an environment of a vehicle interior, a grading parameter setting section for setting a grading parameter indicative of a capacity grade of each of the environment adjustment sections in one-to-one relation to the environment adjustment sections, an environmental luxury degree setting section for adjustably setting an environmental luxury degree desired by a user for a total environmental adjustment state of the vehicle interior, and an integrated control section. The integrated control section controls the cooperation between the environment adjustment sections, such that as the environmental luxury degree set by the environmental luxury degree setting section becomes higher, the environment adjustment section with the higher capacity grade indicated by the grading parameter is preferentially operated.

Claims

1. A vehicle interior environment control system, comprising:

a plurality of environment adjustment sections adapted to operate in cooperation with each other so as to control optimization of an environment of an interior of a vehicle;

grading parameter setting means for setting a grading parameter indicative of a capacity grade of each of the environment adjustment sections in one-to-one relation to the environment adjustment sections;

environmental luxury degree setting means for adjustably setting an environmental luxury degree desired by a user for a total environmental adjustment state of the vehicle interior, achieved by the cooperation between the environment adjustment sections; and

integrated control means for controlling the cooperation between the environment adjustment sections, such that as the environmental luxury degree set by the environmental luxury degree setting means becomes higher, the environment adjustment section with the higher capacity grade indicated by the grading parameter is preferentially operated.

2. The vehicle interior environment control system according to claim 1, further comprising

environmental luxury degree input means which is operated for input by a user in the vehicle interior, wherein the environmental luxury degree setting means sets the environmental luxury degree based on an input state of the environmental luxury degree input means.

3. The vehicle interior environment control system according to claim 1, further comprising

required capacity value setting means for setting a required capacity value for optimization of the vehicle interior environment as a numerical value parameter for each of the environment adjustment sections, the numerical value parameter being directly comparable between the environment adjustment sections,

wherein the integrated control means includes:

total luxury-degree-reflecting capacity value calculation means for calculating a total luxury-degree-reflecting capacity value which is a numerical value parameter directly comparable with the required capacity value, based on the set value of the environmental luxury degree;

integrated required-capacity-value computation means for computing an integrated required capacity value by integrating and computing the required capacity values set in the respective environment adjustment sections according to a pre-set computation procedure; and

capacity value comparison means for comparing the total luxury-degree-reflecting capacity value with the integrated required capacity value, and

wherein the integrated control means controls the cooperation between the environment adjustment sections such that as the integrated required capacity value is closer to the total luxury-degree-reflecting capacity value, the environment adjustment section having the lower capacity grade is preferentially performed.

4. The vehicle interior environment control system according to claim 3, wherein the integrated required-capacity-value computation means adds up and integrates the required capacity values from the required capacity value setting means.

5. The vehicle interior environment control system according to claim 3, wherein the environment adjustment sections have the respective independent low-level control systems, and

wherein the low-level control system includes:

a low-level control main body for comparing a present detected value of a vehicle interior environmental control factor to be controlled with a target value, and for performing feedback control of a control amount of interest based on a comparison result such that the present detected value is close to the target value;

the required capacity value setting means for updating and setting the required capacity value based on a set value of the control amount according to a change of the set value by the feedback control; and

required capacity value output means for outputting and feeding back the required capacity value to an upper-level control system serving as the integrated control means, and

wherein the integrated required-capacity-value computation means in the upper-level control system is adapted to compute the integrated required capacity value based on an feedback input of the required capacity value from each of the low-level control systems.

6. The vehicle interior environment control system according to claim 5, wherein the required capacity value setting means sets a maximum capacity value of the environment adjustment section as an initial value of the required capacity value.

7. The vehicle interior environment control system according to claim 5, wherein the required capacity value also serves as the grading parameter, and the environment adjustment section having the larger required capacity value set is defined as positioned on an upper level of the capacity grade.

8. The vehicle interior environment control system according to claim 7, wherein the upper-level control system includes:

luxury redundant capacity value computation means serving as the capacity value comparison means for computing a luxury redundant capacity value represented by a difference between the total luxury-degree-reflecting capacity value and the integrated required capacity value; and

environment adjustment section selecting means for selecting which one of the environment adjustment sections is operated based on a comparison result between the luxury redundant capacity value and the integrated required capacity value from each of the low-level control systems.

9. The vehicle interior environment control system according to claim 8, wherein the temperature of the vehicle interior is defined as the vehicle interior environmental factor, and

wherein all of the target value, the required capacity value, the integrated required capacity value, and the luxury redundant capacity value have a dimension of temperature.

10. The vehicle interior environment control system according to claim 8, wherein, when the luxury redundant capacity value exceeds the integrated required capacity value, the environment adjustment section selecting means selects all environment adjustment sections as the operable environment adjustment section.

11. The vehicle interior environment control system according to claim 10, wherein, when the luxury redundant capacity value falls below the integrated required capacity value, the environment adjustment section selecting means preferentially selects one with the smaller required capacity value from among the environment adjustment sections.

12. The vehicle interior environment control system according to claim 8, wherein, when the luxury redundant capacity value falls below the integrated required capacity value, the environment adjustment section selecting means selects a part of the environment adjustment sections in order to maximize the integrated required capacity value in a range below the luxury redundant capacity value.

13. The vehicle interior environment control system according to claim 12, wherein, when the luxury redundant capacity value falls below the integrated required capacity value, the environment adjustment section selecting means selects the part of the environment adjustment sections such that the integrated required capacity value is maximized in a form to exclude one or more environment adjustment sections positioned on an upper level of a rank order of the required capacity values.

14. The vehicle interior environment control system according to claim 5, wherein the environment adjustment section includes either an active operation section or a passive operation section, the active operation section being adapted to operate so as to offset disturbance from a vehicle exterior, which may keep the vehicle interior environmental factor of interest away from the target value, by positively introducing energy, the passive operation section being adapted to operate so as to prevent the disturbance from entering the vehicle interior in the same manner, or so as to use disturbance acting in such a direction to put the vehicle interior environmental factor of interest closer to the target value, and

wherein the required capacity value setting means is adapted to set the required capacity values with opposite signs to each other for the active and passive operation sections such that the active operation section contributes to increase the integrated required capacity value, while the passive operation section contributes to decrease the integrated required capacity value.

15. The vehicle interior environment control system according to claim 14, further comprising:

disturbance comparison means for detecting a present vehicle interior value of the vehicle interior environmental factor, and for comparing the present vehicle interior value with a vehicle exterior disturbance value corresponding thereto and the target value; and

passive operation section control means for controlling an operation of the passive operation section based on a comparison result.

16. The vehicle interior environment control system according to claim 15, wherein the passive operation section control means operates so as to use the disturbance when a difference determined by subtracting the target value from the present vehicle interior value has the same sign as that of a difference determined by subtracting the vehicle exterior disturbance value from the present vehicle interior value, and likewise operates so as to interrupt the disturbance when said differences have opposite signs.

17. The vehicle interior environment control system according to claim 16, wherein the vehicle interior temperature is defined as the vehicle interior environmental factor,

wherein the active operation section is a vehicle interior air conditioner, and

wherein the passive operation section is a power window mechanism, the power window mechanism being adapted to operate in an opening direction when the vehicle interior temperature is lower than the target temperature and the vehicle exterior temperature is higher than the vehicle interior temperature, or when the vehicle interior temperature is higher than the target temperature and the vehicle exterior temperature is lower than the vehicle interior temperature, the power window mechanism being further adapted to operate in a shielding direction when the vehicle interior temperature is lower than the target temperature and the vehicle exterior temperature is lower than the vehicle interior temperature, or when the vehicle interior temperature is higher than the target temperature and the vehicle exterior temperature is higher than the vehicle interior temperature.

18. The vehicle interior environment control system according to claim 13, wherein the required capacity value setting means is adapted to set the required capacity values with opposite signs to each other for the active and passive operation sections such that the active operation section contributes to decrease the luxury redundant capacity value, while the passive operation section contributes to increase the luxury redundant capacity value.

19. The vehicle interior environment control system according to claim 18, wherein, when the luxury redundant capacity value falls below the required capacity value of the active operation section, the environment adjustment section selecting means preferentially selects the passive operation section rather than the active operation section.

20. The vehicle interior environment control system according to claim 19, wherein, when the luxury redundant capacity value falls below the integrated required capacity value while the environment adjustment sections in operational selection include both of the active operation section and the passive operation section, the environment adjustment section selecting means excludes at least a part of the active operation section in the operational selection from the selection.

21. The vehicle interior environment control system according to claim 20, wherein, when the luxury redundant capacity value is zero or a negative value while the environment adjustment sections in operational selection include both of the active operation section and the passive operation section, the environment adjustment section selecting means excludes the entire active operation section in the operational selection from the selection, and selects only the passive operating section to be operated.

22. The vehicle interior environment control system according to claim 21, wherein, when the luxury redundant capacity value is recovered to a predetermined level on a positive value side while only the passive operation section is selected to be operated, the environment adjustment operation section selecting means recovers and selects at least a part of the active operation section which has been selected and excluded in such a range that the luxury redundant capacity value does not fall below the integrated required capacity value.

23. The vehicle interior environment control system according to claim 18, further comprising manual selection receiving means for receiving user'"'"'s manual selection of the active operation section whose operation is not selected by the environment adjustment section selecting means.

24. The vehicle interior environment control system according to claim 23, wherein the manual selection receiving means receives the manual selection only when the luxury redundant capacity value is equal to or less than zero.

25. The vehicle interior environment control system according to claim 1, wherein a main object of the control of optimization between the vehicle interior environmental factors is defined as a main vehicle interior environmental factor, and another vehicle interior environmental factor concomitantly changing is defined as a dependent vehicle interior environmental factor,

wherein a subsidiary environment adjustment section is provided for controlling optimization of the dependent vehicle interior environmental factor, and

wherein the integrated control system also controls the subsidiary environment adjustment section.

26. The vehicle interior environment control system according to claim 25, wherein a part of the main environment adjustment section for performing the control of optimization of the main vehicle interior environmental factor also serves as the subsidiary environment adjustment section.

27. The vehicle interior environment control system according to claim 26, wherein the main vehicle interior environmental factor is the vehicle interior temperature, and the main environment adjustment sections are a vehicle interior air conditioner and a power window mechanism,

wherein the dependent vehicle interior environment factors are levels of noise and a signal sound in the vehicle interior, and the subsidiary environment adjustment section includes an audio system for outputting audio as the signal sound, and a noise canceller for reducing the noise level, and

wherein the power window mechanism serving as one of the main environment adjustment sections also serves as the subsidiary environment adjustment section.

28. The vehicle interior environment control system according to claim 27, further comprising vehicle interior S/N ratio input means which is operated for input by the user in the vehicle interior,

wherein the integrated control means controls cooperation among the audio system, the noise canceller, and the power window mechanism so as to obtain a vehicle interior S/N ratio indicated by an input state of the vehicle interior S/N ratio input means.