Last night, we opened a small technical seminar. The entire WeChat group communication is still easier. We apologize to the engineers and friends. Sometimes it is too serious. Just talk. There are too many problems thrown by Shengong, including:
First, the EE architecture
What are the changes in the EE architecture in the next 2020?
Communication speed is greater than 1G?
Is distributed becoming integrated or on-demand for different domains?
What new technology developments have led to these changes in the EE architecture?
Is Domain ECU a must-have product in the future EE architecture?
Second, the Domain ECU
What is the role and mission of Domain ECU in the EE architecture?
What are the OEM expectations for the Domain ECU?
Domain classification and reason
The architecture of a single Domain ECU, the way of Master ECU and Slave ECU?
Sensor&actuator information interoperability?
What are the commonalities of Domain ECU technologies in different domains, and what are the differences?
From an OEM perspective, consider what factors influence the product application of the decision Domain ECU, and which limits its product application?
Regulations or standards?
Intelligent component trends?
Communication technology development?
ADAS and energy control, vehicle moTIon What are the information interfaces of these Domain ECUs?
The status, necessity and introduction time of Ethernet in the Domain ECU?
We have probably reached some consensus like this:
1) Local independent OEMs need to change, step by step from the perspective of EE electronic architecture
At present, most OEM models are in the stage of gateways. That is to say, there is no attempt to put the original models into the integration stage. Some of the functions may have begun to be integrated due to the supplier's reasons, but from the architectural point of view, here is more More is passive.
Integrating functions, increasing the threshold of suppliers' ability, and further tilting toward the ability of TIe1, this thing is actually to add to their own
The big TIe1 is actually taking more general-purpose products, and there are very few definitions for local independent OEMs to change the architecture and functions.
Development costs and product costs are only disadvantages
Due to the platformization and modularization of the models, especially the global simultaneous deployment and development of many places, this kind of domain control hierarchical evolution is the cost.
The basic conclusions cannot be pushed from the beginning, and stagnation in 2020
In fact, even a small step in itself means that too many things are inside.
From functional decomposition to the following communication layer and ECU function implementation layer, from the first step to the last step, it is easier said than done.
The core development of the domain controller is also the rapid improvement of the computing power of the chip. Some TIe1 and OEM hope that the system components belonging to the public information can be allocated and executed in the software, so that the functions required by the customer can be quickly completed with sufficient resources. It is to separate the design of software and hardware.
The sub-ECUs underneath are left with execution drivers and special logic strategies.
Diagnostic information and status data
Sensor intelligent interface
Actuator interface
Finally, the trunk road domain controller is taken, and other modular small things with different configurations.
There are some things worth listing
MCU+VCU+BMS+Charging Control+Distribution Management New Energy Power System Domain Since its new energy is completely new, how can you do this and distribute the functions, because the large amount of things involved only involves electrical and electronic
New energy domains do not involve too many foreign suppliers
The original CAN architecture system of the new energy domain is not perfect, and the integration of functional domains is increased.
ADAS has more possibilities
Different functional integrations require multiple ADAS functions to be directly integrated into one controller
ADAS data volume requirements, direct LVDS and Ethernet PK
Originally the traditional car
Form a light domain control, the function is combined to a certain extent, so that the main suppliers can hold
There are some big separations between the car companies in the research institutes and engineering implementations, and there may be a leap-forward deployment. Some of the scorpions are more likely to be used.
There will be changes under the promotion of ADAS
summary:
1) I am too harsh and blameful. I hope that next time I can better understand your needs and turn discussion and communication into growth rather than dissipative in a relaxed and pleasant atmosphere. It will hurt yourself soon.
2) The rapid speech of the whole EE Electronics will be developed separately at home and abroad. This consumer can't see it, so domestic independent brand car companies will still differentiate but not be particularly fast in this wave of brutal competition.
3) No matter what, this time, there are gains in both knowledge and design. You can't ask for a particularly high degree of networked learning, but both of them have reached the purpose of discussion and communication. Thanks to the group members who participated in the discussion.
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