Click the blue text above↑“Car TV” to follow us Years ago, some economy cars began to use a technology called CAN-BUS, and car salespeople would boast about this technology. However, you might have never seen its true form, and it is not an optional feature. So, what exactly is this? Can This Local Area Network … Read more
Source: Smart Car Technology Editor: Qiqi Join Group: Add WeChat ID autoHS to join the HouShi Automotive Technology group and discuss more information about the autonomous driving industry with experts. -END- Selected Articles — HouShi Automotive Technology Weekly — Tesla Stops Closing Physical Stores – WM Raises 3 Billion – NIO Losses Nearly 10 Billion, … Read more
Passat Air Conditioning Intermittently Not Cooling 1 Fault Symptoms This vehicle is a 2011 model with a mileage of about 15000km. During use, the automatic air conditioning system intermittently fails to cool. 2Diagnosis and Repair Using a diagnostic tool to self-diagnose the automatic air conditioning system, the fault code is B10A1, indicating that the fresh … Read more
In the last article, we explained the major categories of sensors and waveforms. Today, we will discuss the waveforms of actuators and the CAN bus. 01Ignition Waveform Working Principle: When the ECM controls the primary (low voltage) winding, the primary winding magnetizes the core (charging) and stores it; When the primary winding is disconnected, as … Read more
In this article, we will discuss the NM (Network Management) interface and the CAN bus specific NM module, which are part of the service layer of the AUTOSAR layered software architecture. 1. Network Management Interface The Network Management Interface is a module that sits between the ComM and Bus Specific NM modules. In this article, … Read more
Waking up in the morning and smiling at the sky, after smiling I go back to sleep, After waking up I smile at the sky again, then sleep for a bit longer. When I get up in the morning, feeling refreshed all over, I know I’ve overslept again. Life is… Those nights when I want … Read more
The terminal resistance of the CAN bus is generally 120 ohms. In fact, during the design phase, it consists of two 60 ohm resistors connected in series. There are typically two 120Ω nodes on the bus, which is a basic understanding for anyone who knows a little about CAN bus.However, as a struggling student, I … Read more
The remote monitoring of bus operation data based on CAN bus mainly implements functions such as data collection, transmission, and remote assistance for vehicle operation status data, providing data support for vehicle analysis, maintenance, and repair, thereby improving bus operation efficiency, enhancing operational management levels, and comprehensively enhancing the intelligent bus service capability. 1. CAN … Read more
For a long time, I couldn’t distinguish between the CAN and RS-485 buses because I felt there was no significant difference in the circuits; both are differential and connect to conversion chips. RS-485 basically requires only a serial port, while CAN requires a proprietary interface. I have used CAN bus once, but I have used … Read more
In automotive applications, the CAN bus transceiver interface circuit often includes a component known as a choke. This component is typically reserved for placement on the PCB, but in the final product, it may or may not be installed. What is the purpose of this component? Is it really necessary? 1. What is a choke? … Read more