Build a Charging Record for Each Vehicle

Create one record per planned departure, not just one daily total for the fleet. A vehicle working two shifts may need two separate charging windows. Record:

• Vehicle ID, next route and planned departure time
• Arrival time and when the vehicle is actually available to charge
• Energy remaining and the target required for the next route
• Expected charging rate over the relevant battery range
• Assigned connector and any parking or cable-access restrictions
• Route importance, an agreed energy reserve and available fallback vehicles

Automatic state-of-charge data depends on the vehicle, charger and platform integration. Where it is unavailable, use a documented driver reading or validated estimate and record when it was updated. Missing data should trigger a check, not be interpreted as a fully charged vehicle.

Prioritise Charging Urgency, Not Arrival Order

An earlier departure matters, but it is not the only priority rule. A vehicle leaving later may need several more hours of charging. Giving all power to the earliest departure can put another route at risk.

For an initial check, divide the remaining energy requirement by the usable time before charging must finish:

Required average vehicle-side power = remaining energy needed (kWh) ÷ usable charging time (hours)

A vehicle needing 120kWh in two hours requires an average of 60kW at the vehicle. This is a planning lower bound, not a charger setting: actual power can fall as the battery fills, and the site must also supply charging losses. The fleet charging power calculation guide explains this distinction.

1. Set a charging-completion deadline before departure, allowing time for dispatch checks.
2. Check which vehicles have the least time available beyond their expected charging duration.
3. Allocate power while preserving enough charging time for the other vehicles.
4. Recheck the plan when arrivals, energy requirements or charger availability change.

If the schedule cannot serve every deadline, escalate the conflict to the dispatcher. Priority rules cannot create more energy or connection capacity.

Worked Example: Six Vehicles, Different Shifts

Consider a hypothetical depot with six accessible DC connections and a 160kW total vehicle-side power budget. Each active vehicle is assumed to receive a steady 80kW, so no more than two charge at once. Vehicles remain connected while waiting; no overnight cable swaps are assumed.

Vehicle E arrives alongside A but can wait because it leaves much later. C pauses to release capacity for B, then resumes alongside F. The schedule delivers 1,360kWh without exceeding 160kW of combined vehicle-side power, and every vehicle finishes before departure.

Example only: These are assumed operating values, not a HanYuan configuration or algorithm. Real vehicles may not sustain 80kW. Confirm pause/resume support, charging curves, losses, site loads and operating margins before using a schedule in service. A 160kW vehicle-side budget is not a 160kW grid import allowance.

Define What Happens When the Plan Changes

Give the duty manager a clear response for each common disruption:

• Late return: update the usable charging window and check every affected departure.
• Higher energy demand: revise the target using the next route and agreed reserve.
• Interrupted session: confirm the fault and whether another compatible bay is accessible.
• Earlier departure: identify which other vehicle loses charging time before changing priority.
• Missing vehicle data: obtain a reliable reading or apply the documented fallback process.

An authorised manual override should record who changed the plan, why and when normal scheduling resumes. It must not bypass electrical limits or safety controls. If the revised plan remains infeasible, consider a suitable ready vehicle, a route change or an approved alternative charging option rather than assuming extra priority solves the shortfall.

Measure Departure Readiness, Not Just Charger Activity

A successful charging session does not necessarily mean a vehicle has enough energy for its route. Review a small set of operational measures:

• Charging-readiness rate: scheduled departures with the required energy available by the agreed deadline, divided by all scheduled departures.
• Energy shortfalls: how much energy was missing and which routes were affected.
• Interrupted sessions: failures that required intervention.
• Manual overrides: repeated changes that suggest unrealistic planning assumptions.

Record vehicle substitutions separately so they do not hide charging failures. Review recurring problems by route, vehicle and connector.

Match the Schedule to the Hardware and Management Platform

The operating plan needs enough accessible connectors as well as enough power. Use the fleet charger quantity guide to check whether the proposed parking and connection arrangement is workable.

The Injet HanYuan distributed charging system provides central power equipment and separate dispensers, with supported outputs sharing installed DC capacity. Route priorities, departure alerts and vehicle data integration depend on the compatible management platform and commissioned project configuration; the hardware alone does not establish those functions.

Before procurement, ask the supplier to demonstrate your representative schedule, a late return, an unavailable output and loss of communications. Confirm what continues locally and what requires operator intervention. For the wider project sequence, see the Fleet EV Charging Infrastructure Guide.