Tantangan aerodinamika kereta dua tingkat
The development account links the revised nose and roof ventilation to exterior noise and tunnel pressure-wave control. The large body required attention to airflow beyond the cab alone.
Shinkansen
Two decks meet a much longer, lower nose than E1.
E4 · satu rangkaian delapan kereta · spesifikasi 1999/2013
Two eight-car sets could form a sixteen-car train. The electrical equipment uses IGBT switching; the aluminium body helped reduce the mass of an all-double-deck train.
| Susunan · jumlah kereta / M / T | 8 · 4M4T |
|---|---|
| Panjang rangkaian | 201 m |
| Lebar badan kereta | 3,380 mm |
| Daya per motor | 420 kW · kontinu |
| Catu daya listrik | AC 25 kV · 50 Hz |
| Sistem proteksi kereta | DS-ATC |
| Kendali traksi | IGBT · PWM tiga tingkat 2 |
M = kereta bermotor; T = kereta tanpa motor. Angka berlaku untuk satu rangkaian.
Fitur pengembangan E4 · pengenalan Hitachi 1999
| Pendingin udara atap | Susunan pemasukan dan pembuangan udara yang direvisi |
|---|---|
| Desain akustik | Pengurangan bising transformator dan motor traksi |
| Struktur | Konstruksi aluminium untuk kereta dua tingkat yang lebih ringan |
The development account links the revised nose and roof ventilation to exterior noise and tunnel pressure-wave control. The large body required attention to airflow beyond the cab alone.
Hood connects the E4’s capacity with growing commuter use around Tokyo. Two decks and the ability to couple trains addressed concentrated demand. His historical photographs also show why a lower-deck window could face a sound barrier rather than an open landscape.
In an old interior photo, look for the aisle and the nearest automatic door. On the upper deck of cars 1–3, the rows narrowed from six seats to four near that door. The second car numbers apply to a coupled set.
| Dek atas | Car 1–3 / 9–11 | 3 + 3 |
|---|---|---|
| Dek atas dekat pintu | Car 1–3 / 9–11 | 2 + 2 |
| Dek atas | Car 4–6 / 12–14 | 2 + 3 |
Denah kursi dan sumber · JR東日本 · E4系MAX大解剖
Diperiksa 2026-11-07