Zhejiang Wanliyang Launches 600 kW Electric Truck Drive System

Zhejiang Wanliyang Launches CD400-4E320 Electric Truck Drive System

Zhejiang Wanliyang Co., Ltd. has announced the launch of its CD400-4E320 central drive system, developed for electric heavy-duty trucks operating in demanding applications. The system is primarily designed for heavy-load transportation in mountainous areas, trunk-line logistics, and mining sites, where substantial power and torque are important operating requirements. The product has entered the small-batch validation stage, marking its current development status as it progresses through validation. Its architecture combines two electric motors with an integrated four-speed transmission and electronic controls in a single assembly. The announced specifications include a combined peak motor power output of 600 kW, maximum output torque of 28,000 Nm, and maximum overall efficiency of 96.5%.

Dual-Motor Architecture Delivers 600 kW Peak Power

The CD400-4E320 uses a dual-motor configuration built around oil-cooled, flat-wire-wound, high-speed permanent magnet synchronous motors. Together, the two motors provide a combined peak power output of 600 kW. This configuration forms the central power-generation element of the drive system and is intended for electric heavy-duty truck applications involving substantial loads. The use of oil cooling is part of the system's thermal-management design, while the high-speed permanent magnet synchronous motor arrangement defines its electric propulsion architecture. The announced power figure refers to the combined peak output of both motors, rather than the output of either motor individually. The supplied announcement does not specify continuous power, individual motor ratings, or detailed operating conditions for the peak figure.

Integrated Four-Speed Transmission and High Output Torque

The dual-motor system is paired with an integrated four-speed transmission designed as part of the CD400-4E320 assembly. According to the announced specifications, the system achieves maximum output torque of 28,000 Nm and maximum overall efficiency of 96.5%. The transmission is a key part of the integrated powertrain configuration, combining with the motors and electronic controls in one unit. The stated torque figure describes maximum system output torque, while the efficiency figure represents the maximum overall efficiency reported for the product. The announcement does not provide the measurement procedure, operating point, duty cycle, or conditions under which these maximum figures were achieved. Those details would be needed for direct comparisons with other heavy-duty electric drive systems.

Integrated Electronic Control and System Components

The CD400-4E320 integrates two electric motors, a four-speed transmission, and an electronic control unit (ECU) into a single assembly. Its electronic control module combines the motor control units (MCUs) for both motors with a transmission control unit (TCU). This arrangement brings motor and transmission control functions into the integrated system rather than describing them as separate major assemblies. The combined configuration defines the product's control architecture alongside its mechanical and electric propulsion components. The announcement does not provide additional information about software functions, control strategies, communication protocols, diagnostics, or vehicle-level integration requirements. Those details remain unspecified in the available product description.

Shared Cooling, Filtration, and Forced Lubrication System

The drive system's cooling and lubrication arrangement includes a shared oil cooler serving both motors, an electric oil pump, and a bidirectional mechanical oil pump. It also incorporates a three-stage filtration system and forced oil-spray lubrication for the gears. These components form the stated oil-management architecture for the integrated powertrain. The shared cooler is specified for both motors, while the electric and bidirectional mechanical pumps are listed as elements of the system's oil circulation arrangement. The three-stage filtration system and forced oil-spray gear lubrication are additional features identified in the announcement. No further details are provided about oil flow rates, temperature limits, filter specifications, service intervals, or the operating conditions used to evaluate the cooling and lubrication system.

Applications in Mountainous Transport, Logistics, and Mining

The CD400-4E320 is primarily intended for electric heavy-duty trucks used in three application areas: heavy-load operations in mountainous regions, trunk-line logistics, and mining sites. These are the use cases identified in the product announcement, rather than confirmed customer deployments or completed vehicle programs. The combination of dual motors, a four-speed transmission, and high stated output torque defines the system's technical offering for these applications. Its current small-batch validation stage indicates that validation is underway, but the announcement does not establish that mass production has begun. It also does not identify vehicle manufacturers, fleet operators, delivery schedules, commercial pricing, or specific truck models that will use the system.

CD400-4E320 Specifications and System Features

The announced specifications describe an integrated central drive system with electric propulsion, transmission, electronic controls, and supporting oil-management components. The figures below summarize the product details explicitly provided in the announcement. Peak power refers to the combined output of the two motors, while the torque and efficiency values are the stated maximum figures for the system. The announcement does not provide a complete technical datasheet, so specifications such as weight, dimensions, continuous power, operating voltage, and durability-test results cannot be confirmed from the supplied information. The product's development status is also important when interpreting these figures: it has entered small-batch validation rather than being identified as a mass-produced system.

CD400-4E320 Key Specifications

Validation Status and Information Still Unavailable

The CD400-4E320 has entered the small-batch validation stage, according to the announcement. This status should be distinguished from confirmation of mass production, broad commercial availability, or deployment in specific truck fleets, none of which is established by the supplied information. The announced product description provides headline performance figures and identifies the principal mechanical, electronic, cooling, and lubrication components. However, it does not disclose the validation schedule, test results, production timing, pricing, dimensions, weight, warranty conditions, or named vehicle integration programs. These details would be necessary to assess the system's full operating performance and commercial readiness. Until further information is available, the confirmed scope is limited to the stated specifications, intended applications, integrated architecture, and small-batch validation status.

Industry Impact & Outlook

The CD400-4E320 adds an integrated electric drive option aimed at heavy-duty truck operations where high torque and demanding duty requirements are central considerations. Its combination of dual motors, a four-speed transmission, and integrated electronic controls may be relevant to truck manufacturers evaluating complete propulsion assemblies for mountainous transport, trunk-line logistics, and mining applications. The stated 600 kW peak motor power, 28,000 Nm maximum output torque, and 96.5% maximum overall efficiency provide initial performance reference points, but they are not sufficient on their own to establish real-world operating costs or comparative performance. The next meaningful indicators will be validation results, vehicle integration details, and confirmation of production and customer deployment plans.

Frequently Asked Questions

What is the Zhejiang Wanliyang CD400-4E320?
The CD400-4E320 is a central drive system developed for electric heavy-duty trucks and announced by Zhejiang Wanliyang Co., Ltd. It integrates two electric motors, a four-speed transmission, and an electronic control unit into one assembly. The system is intended primarily for heavy-load applications in mountainous areas, trunk-line logistics, and mining sites. Its announced specifications include 600 kW of combined peak motor power, maximum output torque of 28,000 Nm, and maximum overall efficiency of 96.5%. The product has entered the small-batch validation stage, and the supplied announcement does not confirm mass production or specific vehicle deployments.

How much power does the CD400-4E320 produce?
The CD400-4E320 uses two oil-cooled, flat-wire-wound, high-speed permanent magnet synchronous motors that provide a combined peak power output of 600 kW. This figure describes the peak output of the two-motor system together, not the rating of each motor individually. The available announcement does not specify continuous power output, individual motor power ratings, or the operating conditions associated with the peak figure. Those details would be necessary for a fuller assessment of its performance during sustained heavy-duty operation. The 600 kW value should therefore be understood as the announced combined peak motor power specification.

What are the CD400-4E320's maximum torque and efficiency figures?
The announced maximum output torque for the CD400-4E320 is 28,000 Nm, and its maximum overall efficiency is stated as 96.5%. These figures describe two different performance characteristics: the maximum torque delivered by the drive system and its highest reported overall efficiency. The announcement does not specify the test conditions, operating point, measurement methodology, or duty cycle associated with either maximum. As a result, the figures provide useful headline specifications but do not establish how the system performs across every vehicle speed, load, or operating environment. Direct comparisons require equivalent technical data from other systems.

Which components are integrated into the CD400-4E320?
The CD400-4E320 combines two electric motors, an integrated four-speed transmission, and an electronic control unit in one assembly. Its electronic control module incorporates the motor control units for both motors and a transmission control unit. The cooling and lubrication system includes a shared oil cooler for both motors, an electric oil pump, a bidirectional mechanical oil pump, a three-stage filtration system, and forced oil-spray lubrication for the gears. This component list describes the announced architecture. The available information does not detail software functions, control strategies, communication interfaces, physical dimensions, or the vehicle-level changes required for integration.

What applications is the CD400-4E320 designed for?
The CD400-4E320 is primarily designed for electric heavy-duty trucks operating in heavy-load applications in mountainous areas, trunk-line logistics, and mining sites. These are the intended application areas identified in the announcement. The system's dual-motor configuration, four-speed transmission, and stated maximum output torque form part of its technical offering for such demanding transport duties. However, the announcement does not identify specific truck models, fleet operators, customer orders, or completed vehicle deployments. Its intended applications should therefore not be interpreted as confirmation that the drive system is already operating commercially in all three areas.

Has the CD400-4E320 entered mass production?
No mass-production start is confirmed in the supplied announcement; the CD400-4E320 has entered the small-batch validation stage. This indicates that the product is undergoing validation at a limited scale, but the announcement does not provide a timetable for completing that stage or beginning volume production. It also does not identify confirmed production volumes, commercial pricing, delivery schedules, warranty terms, or customer deployment plans. The announced performance specifications and component architecture can be reported, but commercial readiness should not be assumed from them alone. Further company information would be needed to establish subsequent development and production milestones.