"e-Traction PCM 2.0集成手册：控制系统整合指南"
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The e-Traction PCM Integration Manual is a comprehensive guide for integrating the Control PCM 2.0 system into various applications. This manual, authored by the expert team at TheControl, covers all aspects of the integration process and serves as a valuable resource for developers and engineers working with e-Traction technology.
The manual begins with an overview of the Control PCM 2.0 system, detailing its key features and capabilities. It then provides step-by-step instructions for integrating the PCM into different types of vehicles, including electric buses, trucks, and other commercial vehicles. The manual covers all aspects of the integration process, from hardware installation to software configuration and testing.
One of the highlights of the manual is its detailed troubleshooting section, which provides solutions to common issues that may arise during the integration process. The manual also includes best practices and recommendations for optimizing the performance of the Control PCM 2.0 system, ensuring that users can get the most out of their e-Traction technology.
Throughout the manual, the authors emphasize the confidential and privileged nature of the information contained within. Readers are reminded that the document is intended for internal use only and should not be distributed or copied without prior authorization from e-Traction.
In conclusion, the e-Traction PCM Integration Manual is a valuable resource for developers and engineers working with the Control PCM 2.0 system. With its detailed instructions, troubleshooting tips, and best practices, this manual is essential reading for anyone looking to successfully integrate e-Traction technology into their vehicles.
Integration Manual
TheControl PCM 2.0
Page 16 of 245
Author
TheControl Team
Date
2020-12-11
Project
TheControl PCM 2.0
Version
1.5
Document Name
TheControl PCM Integration Manual
Status
Draft
Classification
Confidential
Template Information
TMP_General_document rev63
Approved by
G. Kwintenberg
Approval Date
2020-12-11
All information contained in this document is confidential and privileged to e-Traction and may not be distributed or copied to any
person other than the addressee without prior written consent of © e-Traction Europe B.V.
If the EBS is not controlling the brake light when TheMotion is applying regenerative (electrical braking) the BCM shall activate
the brake light when requested by the Powertrain Control Module (PCM). The PCM will also inform the BCM about the
driveline status and the torque and mechanical power that is generated by the wheels of TheMotion system. See Body Control
Module (BCM) for the details of the integration between the BCM and PCM.
1.6.1.1 Human Machine Interface (HMI)
The Human Machine Interface (HMI) consists of a large display that is visible for the driver at all times. The information
regarding the status of the vehicle (health, warning or error information) is shown on this display or with separate LEDs close
to this display. Also, information such as the vehicle speed or actual torque can be shown here for the drivers’ information.
1.6.2 Drive Neutral Reverse (DNR) selector
The Drive Neutral Reverse (DNR) selector is a device, typically a button box or a rotary switch with at least three options:
Drive, Neutral and Reverse. The driver can select these options to request the vehicle to drive in forward, reverse or do not
generate any torque (neutral). The Powertrain Control Module (PCM) will validate if the request will be accepted based on
the actual vehicle speed, the position of the accelerator pedal and the position of the brake pedal or parking brake. The
Motion System supports CAN communication based DNR selectors. See DNR selector handling for the details of the
integration between the DNR selector and the PCM.
1.6.3 Electronic Braking System (EBS)
The Electronic Braking System (EBS) is in control of the pneumatic braking system which is controlled by the driver with the
brake pedal. The parking brake is also part of the input of the driver that is relevant for TheMotion system. The electrical
parts of the braking system regulate the pressures applied to the different brake discs of all wheels. The speed of all the
wheels is monitored with wheel speed sensors and in case the speed of one or more wheels decreases too much during
braking, the Anti-lock Braking System (ABS) of the EBS will become active. In case one or more driven wheel speeds increase
too much the Anti-Slip Regulation (ASR) of the EBS becomes active. In both cases will the EBS request a brake torque limit
(ABS) or a drive torque limit (ASR) to the retarder (ABS) or engine (ASR). Because TheMotion is responsible for both driving
and electrical braking both limits will be respected by TheMotion system. The Powertrain Control Module (PCM) monitors
both limits communicated via the CANbus interface and will limit the torque requests towards TheWheel if necessary. The
mechanical braking remains the complete responsibility of the EBS.
Brake-by-wire exists on heavy duty commercial vehicles under the name EBS. This system provides the electronic activation
of all braking system components including retarder and engine brake. The EBS also supports trailers and communicates
between the towing vehicle and trailer using the ISO 11992 protocol. EBS still relies on compressed air for braking and is only
controlling the air through valves which means that it is not depending on higher voltages used by the electromechanical or
electro-hydraulic brake systems where electric power also is used to apply the brake pressure. EBS enhances the precision of
the braking over conventional braking, which shortens the braking distance. The fall back of an EBS in case of failure is to use
the ordinary air brake control pressure, so even in the event of a failure of the electronics the vehicle shall be able to make a
safe stop. In modern versions the brake pedal position and brake pedal switch status are sent by the EBS.
The EBS communicates with TheMotion system by means of standardized CAN communication (SAE J1939). Since this
standard currently does not support hybrid/electric vehicles, Wabco offers this integration by means of proprietary
communication. TheMotion system is supporting this proprietary communication protocol. The interaction between the EBS
and TheMotion system is largely based on torque requests and torque limits. For example, in the case of an ASR event, the
EBS will request a limit on the drive torque to reduce the tire slip. In the case of an ABS event the EBS will request a torque
limit to reduce the amount of regenerative brake torque applied by TheMotion system to prevent lock-up of wheels.
The EBS can also be extended to support Electronic Stability Control (ESC). This means that the EBS will be extended with
additional sensors such as: Steering Angle Sensor (SAS), lateral acceleration and yaw rate sensor. See paragraph Integration
with the brake system for the details of the integration between the EBS and the PCM.
The EBS can also have additional functionalities like the hill holder functionality. The EBS will engage the brake when the
vehicle starts rolling in reverse.
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