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CN-121989980-A - Notification system

CN121989980ACN 121989980 ACN121989980 ACN 121989980ACN-121989980-A

Abstract

In the notification system, the determination unit determines whether or not a predetermined change related to the travel plan of the vehicle needs to be executed. The speed of the vehicle and the temperature of a predetermined portion of the vehicle are automatically controlled to approach the target value. The predetermined change is a first automatic change in which the target value is changed by an absolute difference not smaller than a predetermined threshold value, or a second automatic change in which the travel plan is changed during travel of the vehicle. The notification unit provides notification to the occupant in response to determination that the predetermined change related to the travel plan needs to be performed before the predetermined change is performed. The notification includes a cause for the predetermined change related to the travel plan to be performed and information about the predetermined change related to the travel plan.

Inventors

  • FURUKAWA DAISUKE
  • MITSUHARU HIGASHITANI
  • IKEMOTO NOBUAKI

Assignees

  • 株式会社电装

Dates

Publication Date
20260508
Application Date
20251031
Priority Date
20241106

Claims (11)

  1. 1. A notification system for a vehicle, the notification system comprising: A determination unit configured to determine whether or not a predetermined change relating to a planned travel plan of the vehicle needs to be executed, The vehicle is controlled to travel according to a travel plan such that at least one of a speed of the vehicle and a temperature of a predetermined portion of the vehicle is automatically controlled to approach a target value, The predetermined change associated with the travel plan is at least one of: A first automatic change of the target value by an absolute difference not smaller than a predetermined threshold according to the travel plan, and A second automatic change of the travel plan during travel of the vehicle, and Before executing the predetermined change, in response to a determination that the predetermined change related to the travel plan needs to be executed, providing a notification to an occupant of the vehicle, the notification including (i) at least one cause for the predetermined change related to the travel plan to be executed and (ii) information regarding the predetermined change related to the travel plan.
  2. 2. The notification system of claim 1, wherein, The vehicle is an electric vehicle that includes a secondary battery, and travels based on electric power obtained from the secondary battery, The travel plan is predetermined to ensure that the state of charge of the secondary battery remains not less than a predetermined allowable lower limit while enabling the vehicle to travel.
  3. 3. The notification system according to claim 1 or 2, wherein, The notification unit is configured to provide a notification to the occupant using at least one of an audible and visual indication.
  4. 4. The notification system according to claim 1 or 2, wherein, The speed of the vehicle is automatically controlled to approach a target speed as a target value, The predetermined threshold is a predetermined target speed threshold defined as a threshold of the target speed, The absolute difference is an absolute target vehicle speed difference, The predetermined change associated with the travel plan is a first automatic change to the target speed according to the travel plan by the absolute target vehicle speed difference not less than the predetermined target speed threshold.
  5. 5. The notification system according to claim 1 or 2, wherein, The predetermined portion of the vehicle is a cabin of the vehicle, The temperature in the cabin is automatically controlled to approach the target cabin temperature as the target value, The predetermined threshold is a predetermined target temperature threshold defined as a threshold of the target cabin temperature, The absolute difference is an absolute target cabin temperature difference, The predetermined change associated with the travel plan is a first automatic change to the target cabin temperature by the absolute target cabin temperature difference not less than the predetermined target temperature threshold in accordance with the travel plan.
  6. 6. The notification system according to claim 1 or 2, wherein, The predetermined portion is a portion in the vehicle, and a temperature change of the portion is transmitted to the occupant.
  7. 7. The notification system according to claim 1 or 2, wherein, The predetermined change associated with the travel plan is a second automatic change of the travel plan during travel of the vehicle.
  8. 8. The notification system of claim 1 or 2, further comprising: The plan determination unit is configured to determine a travel plan based on information including (i) a current position of the vehicle, (ii) a destination, (iii) an ambient temperature around the vehicle, (iv) a traffic jam around the vehicle, and (v) vehicle information including a vehicle speed and a current state of charge of a secondary battery, The travel plan includes: A planned travel path of the vehicle; At least one charging facility selected to be parked during the planned travel path; a transition of a target speed of the vehicle during running of the vehicle, the target speed of the vehicle corresponding to a target value of the speed of the vehicle, and A transition of a target temperature of the predetermined portion of the vehicle, the target temperature of the predetermined portion corresponding to a target value of a temperature of the predetermined portion of the vehicle.
  9. 9. The notification system of claim 8, further comprising: And a changing unit configured to execute at least one of the first automatic change and the second automatic change as a predetermined change related to the travel plan.
  10. 10. A program product for a vehicle, The program product stores computer program instructions that, The computer program instructions cause a processor to: Determining whether a predetermined change associated with a planned travel plan of the vehicle needs to be performed, The vehicle is controlled to travel according to a travel plan such that at least one of a speed of the vehicle and a temperature of a predetermined portion of the vehicle is automatically controlled to approach a target value, The predetermined change associated with the travel plan is at least one of: A first automatic change of the target value by an absolute difference not smaller than a predetermined threshold according to the travel plan, and A second automatic change of the travel plan during travel of the vehicle, and Before performing a predetermined change, in response to a determination that the predetermined change related to the travel plan needs to be performed, providing a notification to an occupant of the vehicle, the notification including (i) at least one cause of the predetermined change related to the travel plan to be performed and (ii) information regarding the predetermined change related to the travel plan.
  11. 11. A notification method for a vehicle that is controlled to travel according to a travel plan such that at least one of a speed of the vehicle and a temperature of a predetermined portion of the vehicle is automatically controlled to be close to a target value, the notification method comprising: Determining whether a predetermined change associated with a planned travel plan of the vehicle needs to be performed, The predetermined change associated with the travel plan is at least one of: A first automatic change of the target value by an absolute difference not smaller than a predetermined threshold according to the travel plan, and A second automatic change of the travel plan during travel of the vehicle, and Before performing a predetermined change, in response to a determination that the predetermined change related to the travel plan needs to be performed, providing a notification to an occupant of the vehicle, the notification including (i) at least one cause of the predetermined change related to the travel plan to be performed and (ii) information regarding the predetermined change related to the travel plan.

Description

Notification system Cross Reference to Related Applications The present application is based on and claims priority from japanese patent application No. 2024-194468 filed on month 11 and 6 of 2024, the disclosure of which is incorporated herein by reference. Technical Field The present disclosure relates to a notification system for a vehicle. Background Japanese patent publication 3814050 discloses an emergency automatic braking apparatus for a vehicle, which automatically actuates a brake in an emergency situation. In the device, when an emergency occurs, the occurrence of the emergency is first notified, and then the brake is automatically actuated. Disclosure of Invention In recent years, for the purpose of, for example, energy saving and comfortable driving, a technique of, for example, automatically controlling the vehicle speed has been developed. Performing such automatic vehicle speed control is undesirable to one or more occupants. This may cause discomfort to one or more occupants, which may compromise occupant comfort. The technology disclosed in the patent publication provides a notification function for the purpose of occupant safety and assurance. Unfortunately, this technique does not take into account reducing the discomfort of the occupant when performing an automatic vehicle speed control that is not desired by the occupant. The inventors have found the above-mentioned problems after their detailed consideration. In view of the above, the present disclosure aims to provide a notification system capable of reducing the uncomfortable feeling of an occupant when control that is not desired by one or more occupants is performed in automatic control of a vehicle. One exemplary aspect of the present disclosure provides a notification system for a vehicle. The notification system includes a determination unit configured to determine whether a predetermined change relating to a predetermined travel plan of the vehicle needs to be performed. The vehicle is controlled to travel according to a travel plan such that at least one of a speed of the vehicle and a temperature of a predetermined portion of the vehicle is automatically controlled to be close to a target value. The predetermined change related to the travel plan is at least one of a first automatic change to the target value by an absolute difference not smaller than a predetermined threshold value in accordance with the travel plan and a second automatic change to the travel plan during travel of the vehicle. The notification system includes a notification unit configured to provide a notification to an occupant of the vehicle in response to a determination that a predetermined change related to the travel plan needs to be performed before the predetermined change is performed. The notification includes (i) at least one reason for performing a predetermined change associated with the travel plan, and (ii) information regarding the predetermined change associated with the travel plan. The above-described construction of the notification system enables the occupant to recognize, from the notification performed by the notification unit, that (i) the predetermined change related to the travel plan is to be performed, and (ii) at least one cause of the predetermined change related to the travel plan is to be performed, before the predetermined change related to the travel plan is performed. Therefore, even if execution of the predetermined change related to the travel plan is not desired by the occupant, the occurrence of discomfort to the occupant due to the occurrence of the predetermined change related to the travel plan can be reduced. Throughout this disclosure, where bracketed reference numerals are used for respective elements, the reference numerals are provided only as examples of correspondence of the elements with specific structures in embodiments described later. Accordingly, the present disclosure is not limited by the use of such reference numerals. Drawings Other aspects of the disclosure will become apparent from the following description of the embodiments with reference to the accompanying drawings, in which: Fig. 1 is a side view schematically showing a vehicle to which a notification system of a first embodiment of the present disclosure is applied. Fig. 2 is a block diagram schematically illustrating typical components installed in the vehicle shown in fig. 1 and typical components of a cloud communicatively connected to the vehicle. Fig. 3 is a timing chart showing a combination of a plurality of charts, each schematically showing a transition example of a corresponding one of the target vehicle speed, the target battery temperature, the target cabin temperature, and the predicted charging rate of the high-voltage battery. Fig. 4 is a flowchart schematically showing a control routine for making a travel plan of a vehicle including a planned travel path of the vehicle according to the first embodiment. Fig. 5 is a schemati