Plan the delivery clock and the cooling clock together
Cooling can continue while the truck is loading, waiting or parked. Map that demand alongside driving, door openings, cargo conditions and ambient temperature. Identify whether refrigeration draws from traction energy or a separate supply before combining the energy figures.
Review the return and charging window while the required cooling continues. A compatible connector or nearby charging location does not prove access, sufficient recovery time or simultaneous cooling. Confirm the installed system’s behavior in each operating mode.
Check delays and seasonal conditions before scaling the route
A mild-weather trial cannot establish hot- or cold-season completion. Define reserve and a recovery decision point with a confirmed way to protect the cargo. When adding vehicles, review overlapping returns and depot demand rather than multiplying a single-truck result.
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| Decision | What to establish | Condition or limit |
|---|---|---|
| Route time versus distance | Use a delivery timeline alongside kilometres. Include cooling during queues, breaks and loading. | Distance alone omits time-dependent refrigeration demand; a short route can still need a long cooling period. |
| Shared or separate energy | Request an electrical architecture diagram identifying traction battery, auxiliary storage and refrigeration connections. | Do not deduct cooling twice if a supplier route model already includes it, or omit it from a traction-only estimate. |
| Loading and doors | Record starting cargo temperature and representative door events; test the planned loading order and airflow space. | A closed, empty-body demonstration does not represent multi-stop delivery with warm air entering the body. |
| Charging window | Check the energy that can actually be replenished in the available dwell period while the required cooling continues. | A charger nameplate or a nearby public charging map does not prove access, compatibility or simultaneous cooling. |
| Seasonal case | Ask for the expected operating range under the agreed ambient, payload and route conditions, with assumptions visible. | A mild-weather trial cannot establish hot-season or cold-season route completion. |
| Delay and recovery | Name a decision point for delayed routes and a confirmed location or service that can protect the cargo. | A spare socket or backup truck is useful only if it is compatible, available and included in the operating plan. |
| Fleet expansion | Assess overlapping return times and depot charging demand before adding vehicles to the same schedule. | One successful vehicle trial does not prove that the depot can recharge an entire shift at once. |
Request a route trial with visible energy assumptions
Provide the stop sequence, dwell periods, cargo requirements and seasonal cases. Record driving and cooling demand without double counting, and agree how delays, charging faults and cargo recovery will be handled.
Information to prepare for this review
- Cargo and permitted temperature conditions, compartment arrangement and loading temperature
- Route distance, gradients, traffic delays, delivery windows and return-to-base time
- Stop count, typical and extended door-open periods, waiting time and missed-delivery procedure
- Completed truck mass, cargo loading pattern, refrigeration equipment and other electrical loads
- Depot and customer charging access, connector compatibility, available power and access hours
- Seasonal ambient conditions and the operator-approved energy reserve and cargo recovery plan
Records to request and keep
- A dated route worksheet separating measured operator inputs from supplier assumptions
- Completed-vehicle configuration and electrical integration approval for the exact chassis and refrigeration unit
- Energy model stating usable storage, starting charge, loads, losses, reserve and any recharge assumptions
- Representative trial log with time, distance, payload, ambient conditions, temperature records and start/end charge
- Charging demonstration at the intended site, including the required refrigeration operating state
- Documented treatment of an extended unloading stop, unavailable charger and delayed return
- Named responsibility for temperature alarms, route changes and cargo recovery during service
Common mistakes and what to check instead
- Applying the chassis brochure range to the finished refrigerated truck: Request a route assessment for the completed mass, body, refrigeration and operating conditions.
- Budgeting cooling only while the wheels are moving: Include preparation, unloading and waiting; identify power availability during each phase.
- Buying more battery before examining the delivery schedule: Compare feasible charging, stop order and loading arrangements, then assess mass and payload effects of any added equipment.
Scope of this guide
This is a route-brief method, not a battery-sizing calculation or a range guarantee.
Cargo temperature limits and excursion handling come from the responsible cargo owner and applicable requirements.
Use the actual equipment supplier for high-voltage integration, charging compatibility and the final energy assessment.
Sources and applicability
Manufacturer discussion of staging, charging, route distance, stops and door openings. Its trial results and optional technologies do not establish KEEYAK range or equipment.
Does not establish: It applies to the named manufacturer example and does not establish a KEEYAK model rating or project result.
Model-specific alternator, standby and body-builder integration considerations. Numerical ratings are not transferred to a KEEYAK specification.
Does not establish: It applies to the named manufacturer example and does not establish a KEEYAK model rating or project result.