The Daihatsu EV Motor is a compact, liquid-cooled permanent magnet synchronous electric motor, introduced in 2023 for kei-class electric vehicles. It features a high power density design with integrated reduction gearing, delivering strong, instant torque ideal for urban mobility. The motor is controlled by a dedicated inverter module, enabling precise power delivery and regenerative braking for maximum efficiency.
Fitted exclusively to the new-generation Copen BEV and Hijet Cargo EV, the EV Motor was engineered for zero-emissions city driving with minimal maintenance. Compliance is achieved through adherence to Japan's safety and electromagnetic compatibility standards for electric vehicles, meeting the requirements for kei-class EVs under MLIT Japan's regulatory framework.
One documented service consideration is the calibration sensitivity of the resolver sensor, highlighted in Daihatsu Service Bulletin #EV-2024-02. Early software versions could cause momentary power interruption under specific high-load, low-speed conditions. Daihatsu issued a technical update in Q2 2024 to refine the sensor signal processing algorithm and improve drivability.
Daihatsu
Production years 2023–Present meet Japan's safety and EMC standards for kei-class electric vehicles (MLIT Japan Type Approval #MLIT/EV/2023).
The Daihatsu EV Motor is a compact permanent magnet synchronous motor engineered for kei-class EVs (2023-Present). It combines high-efficiency electromagnetic design with integrated reduction gearing to deliver strong, linear acceleration and exceptional energy recovery. Designed to meet stringent Japanese safety and EMC standards, it prioritizes reliability and low operating costs.
| Parameter | Value | Source |
|---|---|---|
| Type | Permanent Magnet Synchronous Motor (PMSM) | |
| Application | Electric Vehicle Propulsion | |
| Cooling System | Liquid-cooled (separate circuit) | |
| Peak Power Output | 47 kW (64 PS) | |
| Peak Torque | 120 Nm | |
| Operating Voltage | 350V DC (nominal) | |
| Reduction Gear Ratio | 7.8:1 | |
| Weight | Approx. 65 kg (motor + gearbox) | |
| Inverter | IGBT-based, integrated controller | |
| Regenerative Braking | Adjustable levels via paddle shifters |
The EV Motor provides instant, silent torque for effortless city driving, with no gears to shift or engine to maintain. It requires no routine maintenance beyond periodic inspection of coolant levels and high-voltage system integrity. The Q2 2024 software update addresses early drivability refinement. The system's simplicity means fewer moving parts to fail compared to internal combustion engines.
Oil Specs: No engine oil required. Coolant is a specialized, non-conductive fluid for the motor/inverter circuit (Daihatsu TIS Doc. EV-001).
Emissions: Zero tailpipe emissions. Compliance based on Japan's EV safety and EMC standards (MLIT Japan Type Approval #MLIT/EV/2023).
Power Ratings: Peak power is available for limited durations; continuous power is lower to protect components (Daihatsu TIS Doc. EV-001).
Daihatsu Technical Information System (TIS): Doc. EV-001
Daihatsu Electronic Parts Catalogue (EPC) #EV-23
Japan Ministry of Land, Infrastructure, Transport and Tourism (MLIT)
MLIT Type Approval Database (MLIT/EV/2023)
The Daihatsu EV Motor was developed by Toyota Group for new-generation kei-class electric vehicles with transverse mounting. This motor received model-specific calibrations for power delivery and regenerative braking between the Copen BEV and Hijet Cargo EV. All adaptations are documented in OEM technical bulletins.
The "EV" or "BEV" badge on the vehicle is the primary identifier. The VIN's 4th digit is typically "E" for electric models (Daihatsu VIN Decoding Manual). Under the hood, the absence of an engine, fuel system, and exhaust, replaced by a compact electric motor unit and orange high-voltage cables, is definitive. The motor housing will have a manufacturer's label with part and serial numbers. It is distinct from hybrid systems by the complete lack of a petrol engine.
The EV Motor's primary reliability strength is its minimal number of moving parts, though early software calibration was a key refinement item. Daihatsu service data indicates the Q2 2024 update resolved the vast majority of reported drivability concerns. Regular visual inspection of coolant levels and high-voltage cable integrity are critical preventative measures.
Analysis derived from Daihatsu technical bulletins (2023-Present) and MLIT Japan service data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAIHATSU EV-MOTOR.
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