Supercharge Your Innovation With Domain-Expert AI Agents!

Excavator locking method based on MD5 algorithm

A technology for excavator and car locking, which is applied in the field of excavator car locking based on MD5 algorithm, can solve problems such as low safety, and achieve the effects of enhancing safety, preventing accidental locking of cars, and ensuring safety.

Active Publication Date: 2019-07-23
QINGDAO LOVOL EXCAVATOR
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem of low security existing in the existing car locking scheme, the present invention provides an excavator car locking method based on MD5 algorithm

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Excavator locking method based on MD5 algorithm
  • Excavator locking method based on MD5 algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Step 1: Every time the excavator is powered on, the engine ECU sends a message of ID0x18FD0100 to the vehicle T-BOX through the CAN bus, and the message is 11 22 33 44 55. The vehicle T-BOX receives the message and passes the standard MD5 The algorithm calculates the 32-bit confidential value 3354045A397621CD92406F1F98CDE292 and feeds it back to the engine ECU;

[0035] Step 2: The engine ECU verifies the confidential value. If the verification is passed, the engine ECU will no longer send messages to the vehicle T-BOX, and the vehicle will not be locked normally.

[0036] When the first-level lock command is issued, the on-board T-BOX will send a message with the ID 0x00000551 (the content is 00 09 01) to the engine ECU. The engine ECU executes successfully and limits the gear position of the excavator to gear 1.

[0037] When the second-level lock command is issued, the on-board T-BOX will send a message with the ID 0x00000551 (the content is 00 09 02) to the engine E...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an excavator locking method based on an MD5 algorithm. The excavator locking method comprises a remote console, an excavator comprises a vehicle-mounted T-BOX, and an engine ECU. The locking method comprises the following steps that the engine ECU sends a message with a random length of a specific ID to the vehicle-mounted T-BOX through a CAN bus, and the vehicle-mounted T-BOX receives the message, calculates a secret value of the 32-bit length through the standard MD5 algorithm and feeds back the secret value to the engine ECU; the engine ECU checks the secret value, if the verification is not successful, the step 1 continues to be executed, if the verification is not successfully continuously for 15 times, the vehicle-mounted T-BOX sends the information that the verification is not successful to the remote console, the engine ECU starts to perform timekeeping on the working time of the excavator, if the accumulated working time of the excavator exceeds 24 hours, the engine ECU executes automatic locking, the excavator is not allowed to start, and meanwhile, the vehicle-mounted T-BOX uploads excavator position information to the remote console; and if the verification is successful, the engine ECU does not send the message to the vehicle-mounted T-BOX any longer, and the excavator is normal and not locked. According to the method, the safety of the excavator is enhanced, and the benefits of a main engine plant and a customer are protected.

Description

technical field [0001] The invention relates to the field of excavator locking, in particular to an excavator locking method based on the MD5 algorithm. Background technique [0002] Considering the credit risk problem of existing excavator products, the vehicle has the function of locking the car. Most of the existing main engine manufacturers use the built-in relay of TBOX to cut off the electrical circuit to realize the function of locking the vehicle. [0003] There is following shortcoming in this kind car locking scheme: [0004] 1. Use the wiring harness to lock the car, the anti-demolition is weak and easy to be cracked; [0005] 2. There is no core lock algorithm, and the protection is poor; [0006] 3. If the wiring harness is damaged, it is easy to accidentally lock the car. [0007] At present, the security of the car locking scheme is too low, and there is a hidden danger of vehicle loss, which may easily cause losses to customers and OEMs. Therefore need to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): E02F9/20
CPCE02F9/205E02F9/2095E02F9/226
Inventor 苑国茂陈维雄蒙小行金硕董丽邹梓玲刘虹
Owner QINGDAO LOVOL EXCAVATOR
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com