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A speed calculation method, device and vehicle-mounted equipment

A calculation method and a technology of a calculation device, applied in the field of new energy control, can solve problems such as the inability to meet the speed requirements of different controllers, and achieve the effect of easily meeting the speed requirements of the vehicle

Active Publication Date: 2020-11-03
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a speed calculation method, device and vehicle-mounted equipment to solve the problem that only the numerical value of the vehicle speed can be obtained and cannot meet the needs of different controllers for vehicle speed

Method used

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  • A speed calculation method, device and vehicle-mounted equipment
  • A speed calculation method, device and vehicle-mounted equipment
  • A speed calculation method, device and vehicle-mounted equipment

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Embodiment Construction

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0077] An embodiment of the present invention provides a speed calculation method, which is applied to a vehicle-mounted device, and the vehicle-mounted device may be a vehicle controller.

[0078] refer to figure 1 , the speed calculation method includes:

[0079] S11. Acquiring the output shaft rotational speed signal;

[0080] Wherein, the output shaft may be the output shaft of the transmission or the output shaft of the final reducer. The output shaft ...

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Abstract

The invention provides a speed computing method and device and vehicle-mounted equipment. The absolute value of a first vehicle speed and the direction of the vehicle speed can be obtained, that is, the vehicle speed and the direction of the vehicle speed can be both obtained, compared with methods and devices which can only obtain numerical values of vehicle speeds, the speed computing method anddevice can meet requirements of different controllers for vehicle speeds more easily.

Description

technical field [0001] The invention relates to the field of new energy control, and more specifically, relates to a speed calculation method, device and vehicle-mounted equipment. Background technique [0002] With the increasing emphasis on energy security and environmental protection, hybrid electric vehicles and pure electric vehicles have become the development trend of today's automobiles. As the basic signal representing the state of the vehicle, the vehicle speed signal is an important input for calculations such as gear selection and driver demand torque analysis, and has a significant impact on the safe driving of the vehicle. [0003] In the prior art, the vehicle speed can be obtained by using a sensor to collect the vehicle speed, but the obtained vehicle speed is only a numerical value. However, different controllers have different requirements for the vehicle speed signal, and only the numerical value of the vehicle speed can not satisfy different controllers....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W40/105
Inventor 赵沂姜丰伟侯清亮黄智奇梁元波
Owner SAIC MOTOR